<!--- This file is automatically generated. Do not edit directly. -->
Awesome Scala [![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome)
=============

A community driven list of useful Scala libraries, frameworks and software. This is not a catalog of all the libraries, just a starting point for your explorations. Inspired by [awesome-python](https://github.com/vinta/awesome-python). Other amazingly awesome lists can be found in the [awesome-awesomeness](https://github.com/bayandin/awesome-awesomeness) list.

Also awesome is [Scaladex](https://index.scala-lang.org/), the searchable, tagged, and centralized index of Scala libraries.

Projects with over 500 stargazers are in bold.

## Contributing

Your contributions are always welcome! Please submit a pull request or create an issue to add a new framework, library or software to the list. Do not submit a project that hasn’t been updated in the past 6 months or is not awesome.

Don't modify `README.md` in your pull request. It is automatically generated. Modify `template.md` instead.

## Table of Contents

- [Learning Scala](#learning-scala)
- [Projects](#projects)
    - [Android](#android)
    - [Archive and Compression](#archive-and-compression)
    - [Artificial Intelligence](#artificial-intelligence)
    - [Authentication](#authentication)
    - [Authorization](#authorization)
    - [Big Data](#big-data)
    - [Command Line Interfaces](#command-line-interfaces)
    - [Cryptography](#cryptography)
    - [CSV](#csv)
    - [Data Binding and Validation](#data-binding-and-validation)
    - [Database](#database)
    - [DevOps](#devops)
    - [Distributed Systems](#distributed-systems)
    - [Extensions](#extensions)
    - [Functional Reactive Programming](#functional-reactive-programming)
    - [Geospatial](#geospatial)
    - [Graphical User Interfaces](#graphical-user-interfaces)
    - [HTTP](#http)
    - [i18n](#i18n)
    - [Image processing and image analysis](#image-processing-and-image-analysis)
    - [JavaScript](#javascript)
    - [JSON](#json)
    - [Markdown](#markdown)
    - [Metrics and Monitoring](#metrics-and-monitoring)
    - [Misc](#misc)
    - [Modularization and Dependency Injection](#modularization-and-dependency-injection)
    - [Parsing](#parsing)
    - [Reactive Web Frameworks](#reactive-web-frameworks)
    - [Sbt plugins](#sbt-plugins)
    - [Science and Data Analysis](#science-and-data-analysis)
    - [Scheduling](#scheduling)
    - [Semantic Web](#semantic-web)
    - [Serialization](#serialization)
    - [Templating](#templating)
    - [Testing](#testing)
    - [Tools](#tools)
    - [Web Frameworks](#web-frameworks)
    - [XML / HTML](#xml--html)
    - [YAML](#yaml)
- [Learning Scala](#learning-scala)
    - [Books](#books)
    - [Exercises](#exercises)
    - [Tutorials and courses](#tutorials-and-courses)
    - [Commercial courses](#commercial-courses)
    - [Community members' blogs](#community-members-blogs)
    - [Company Blogs](#company-blogs)
    - [Podcasts](#podcasts)
- [Contributing](#contributing)

### Archive and Compression

Name | Description | GitHub Activity
---- | ----------- | ---------------
[SevenZ4S](https://github.com/gonearewe/SevenZ4S) | SevenZip library for Scala, easy to use.  | ![GitHub stars](https://img.shields.io/github/stars/gonearewe/SevenZ4S) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/gonearewe/SevenZ4S)

### Artificial Intelligence

Name | Description | GitHub Activity
---- | ----------- | ---------------
[cilib](https://github.com/ciren/cilib) | Typesafe, purely functional Computational Intelligence | ![GitHub stars](https://img.shields.io/github/stars/ciren/cilib) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ciren/cilib)

### Database

*Database access libraries in Scala.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[akka-persistence-gcp-datastore](https://github.com/innFactory/akka-persistence-gcp-datastore) | akka-persistence-gcp-datastore is a journal and snapshot store plugin for akka-persistence using google cloud firestore in datastore mode.  | ![GitHub stars](https://img.shields.io/github/stars/innFactory/akka-persistence-gcp-datastore) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/innFactory/akka-persistence-gcp-datastore)
[anorm](https://github.com/playframework/anorm) | The Anorm database library | ![GitHub stars](https://img.shields.io/github/stars/playframework/anorm) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/playframework/anorm)
[**casbah**](https://github.com/mongodb/casbah) | Casbah is now officially end-of-life (EOL). | ![GitHub stars](https://img.shields.io/github/stars/mongodb/casbah) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/mongodb/casbah)
[clickhouse-scala-client](https://github.com/crobox/clickhouse-scala-client) | Clickhouse Scala Client with Reactive Streams support | ![GitHub stars](https://img.shields.io/github/stars/crobox/clickhouse-scala-client) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/crobox/clickhouse-scala-client)
[couchbase-jvm-clients](https://github.com/couchbase/couchbase-jvm-clients) | The Couchbase Monorepo for JVM Clients: Java, Scala, io-core… | ![GitHub stars](https://img.shields.io/github/stars/couchbase/couchbase-jvm-clients) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/couchbase/couchbase-jvm-clients)
[couchdb-scala](https://github.com/beloglazov/couchdb-scala) | A purely functional Scala client for CouchDB | ![GitHub stars](https://img.shields.io/github/stars/beloglazov/couchdb-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/beloglazov/couchdb-scala)
[**doobie**](https://github.com/tpolecat/doobie) | Functional JDBC layer for Scala. | ![GitHub stars](https://img.shields.io/github/stars/tpolecat/doobie) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/tpolecat/doobie)
[**elastic4s**](https://github.com/sksamuel/elastic4s) | Elasticsearch Scala Client - Reactive, Non Blocking, Type Safe, HTTP Client | ![GitHub stars](https://img.shields.io/github/stars/sksamuel/elastic4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sksamuel/elastic4s)
[etcd4s](https://github.com/mingchuno/etcd4s) | Scala etcd client implementing V3 APIs | ![GitHub stars](https://img.shields.io/github/stars/mingchuno/etcd4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/mingchuno/etcd4s)
[finagle-postgres](https://github.com/finagle/finagle-postgres) | PostgreSQL protocol support for Finagle | ![GitHub stars](https://img.shields.io/github/stars/finagle/finagle-postgres) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/finagle/finagle-postgres)
[laserdisc](https://github.com/laserdisc-io/laserdisc) | A Future-free Fs2 native pure FP Redis client | ![GitHub stars](https://img.shields.io/github/stars/laserdisc-io/laserdisc) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/laserdisc-io/laserdisc)
[mysql-binlog-stream](https://github.com/laserdisc-io/mysql-binlog-stream) | None | ![GitHub stars](https://img.shields.io/github/stars/laserdisc-io/mysql-binlog-stream) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/laserdisc-io/mysql-binlog-stream)
[longevity](https://github.com/longevityframework/longevity) | A Persistence Framework for Scala and NoSQL | ![GitHub stars](https://img.shields.io/github/stars/longevityframework/longevity) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/longevityframework/longevity)
[lucene4s](https://github.com/outr/lucene4s) | Light-weight convenience wrapper around Lucene to simplify complex tasks and add Scala sugar. | ![GitHub stars](https://img.shields.io/github/stars/outr/lucene4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/outr/lucene4s)
[mapperdao](https://github.com/kostaskougios/mapperdao) | A Scala ORM library | ![GitHub stars](https://img.shields.io/github/stars/kostaskougios/mapperdao) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/kostaskougios/mapperdao)
[morpheus](https://github.com/outworkers/morpheus) | Reactive type-safe Scala driver for SQL databases | ![GitHub stars](https://img.shields.io/github/stars/outworkers/morpheus) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/outworkers/morpheus)
[neotypes](https://github.com/neotypes/neotypes) | Scala lightweight, type-safe, asynchronous driver for neo4j  | ![GitHub stars](https://img.shields.io/github/stars/neotypes/neotypes) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/neotypes/neotypes)
[**phantom**](https://github.com/outworkers/phantom) | Schema safe, type-safe, reactive Scala driver for Cassandra/Datastax Enterprise | ![GitHub stars](https://img.shields.io/github/stars/outworkers/phantom) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/outworkers/phantom)
[pulsar4s](https://github.com/CleverCloud/pulsar4s) | Idiomatic, typesafe, and reactive Scala client for Apache Pulsar | ![GitHub stars](https://img.shields.io/github/stars/CleverCloud/pulsar4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/CleverCloud/pulsar4s)
[**zio-quill**](https://github.com/zio/zio-quill) | Compile-time Language Integrated Queries for Scala | ![GitHub stars](https://img.shields.io/github/stars/zio/zio-quill) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/zio/zio-quill)
[reactivecouchbase-rs-core](https://github.com/ReactiveCouchbase/reactivecouchbase-rs-core) | New ReactiveCouchbase driver using reactive-streams | ![GitHub stars](https://img.shields.io/github/stars/ReactiveCouchbase/reactivecouchbase-rs-core) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ReactiveCouchbase/reactivecouchbase-rs-core)
[**ReactiveMongo**](https://github.com/ReactiveMongo/ReactiveMongo) | :leaves: Non-blocking, Reactive MongoDB Driver for Scala | ![GitHub stars](https://img.shields.io/github/stars/ReactiveMongo/ReactiveMongo) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ReactiveMongo/ReactiveMongo)
[**rediscala**](https://github.com/etaty/rediscala) | Non-blocking, Reactive Redis driver for Scala (with Sentinel support) | ![GitHub stars](https://img.shields.io/github/stars/etaty/rediscala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/etaty/rediscala)
[relate](https://github.com/lucidsoftware/relate) | Performant database access in Scala | ![GitHub stars](https://img.shields.io/github/stars/lucidsoftware/relate) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/lucidsoftware/relate)
[salat](https://github.com/salat/salat) | Salat is a simple serialization library for case classes. | ![GitHub stars](https://img.shields.io/github/stars/salat/salat) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/salat/salat)
[**sangria**](https://github.com/sangria-graphql/sangria) | Scala GraphQL implementation | ![GitHub stars](https://img.shields.io/github/stars/sangria-graphql/sangria) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sangria-graphql/sangria)
[scala-activerecord](https://github.com/aselab/scala-activerecord) | ActiveRecord-like ORM library for Scala | ![GitHub stars](https://img.shields.io/github/stars/aselab/scala-activerecord) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/aselab/scala-activerecord)
[scala-forklift](https://github.com/lastland/scala-forklift) | Type-safe data migration tool for Slick, Git and beyond. | ![GitHub stars](https://img.shields.io/github/stars/lastland/scala-forklift) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/lastland/scala-forklift)
[**scala-redis**](https://github.com/debasishg/scala-redis) | A scala library for connecting to a redis server, or a cluster of redis nodes using consistent hashing on the client side. | ![GitHub stars](https://img.shields.io/github/stars/debasishg/scala-redis) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/debasishg/scala-redis)
[scala-sql](https://github.com/wangzaixiang/scala-sql) | scala SQL api | ![GitHub stars](https://img.shields.io/github/stars/wangzaixiang/scala-sql) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/wangzaixiang/scala-sql)
[scalarelational](https://github.com/outr/scalarelational) | Type-Safe framework for defining, modifying, and querying SQL databases | ![GitHub stars](https://img.shields.io/github/stars/outr/scalarelational) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/outr/scalarelational)
[**scalikejdbc**](https://github.com/scalikejdbc/scalikejdbc) | A tidy SQL-based DB access library for Scala developers. This library naturally wraps JDBC APIs and provides you easy-to-use APIs. | ![GitHub stars](https://img.shields.io/github/stars/scalikejdbc/scalikejdbc) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalikejdbc/scalikejdbc)
[scanamo](https://github.com/scanamo/scanamo) | Simpler DynamoDB access for Scala | ![GitHub stars](https://img.shields.io/github/stars/scanamo/scanamo) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scanamo/scanamo)
[scredis](https://github.com/Livestream/scredis) | Non-blocking, ultra-fast Scala Redis client built on top of Akka IO, used in production at Livestream | ![GitHub stars](https://img.shields.io/github/stars/Livestream/scredis) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/Livestream/scredis)
[scruid](https://github.com/ing-bank/scruid) | Scala + Druid: Scruid. A library that allows you to compose queries in Scala, and parse the result back into typesafe classes. | ![GitHub stars](https://img.shields.io/github/stars/ing-bank/scruid) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ing-bank/scruid)
[shade](https://github.com/monix/shade) | Memcached client for Scala | ![GitHub stars](https://img.shields.io/github/stars/monix/shade) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/monix/shade)
[**slick**](https://github.com/slick/slick) | Slick (Scala Language Integrated Connection Kit) is a modern database query and access library for Scala | ![GitHub stars](https://img.shields.io/github/stars/slick/slick) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/slick/slick)
[**slick-pg**](https://github.com/tminglei/slick-pg) | Slick extensions for PostgreSQL | ![GitHub stars](https://img.shields.io/github/stars/tminglei/slick-pg) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/tminglei/slick-pg)
[**squeryl**](https://github.com/squeryl/squeryl) | A Scala DSL for talking with databases with minimum verbosity and maximum type safety | ![GitHub stars](https://img.shields.io/github/stars/squeryl/squeryl) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/squeryl/squeryl)
[molecule](https://github.com/scalamolecule/molecule) | Non-blocking asynchronous domain-customizable database query language for Scala and Scala.js against the Datomic database. | ![GitHub stars](https://img.shields.io/github/stars/scalamolecule/molecule) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalamolecule/molecule)
[zio-redis](https://github.com/zio/zio-redis) | A ZIO-based redis client | ![GitHub stars](https://img.shields.io/github/stars/zio/zio-redis) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/zio/zio-redis)
[**skunk**](https://github.com/tpolecat/skunk) | A data access library for Scala + Postgres. | ![GitHub stars](https://img.shields.io/github/stars/tpolecat/skunk) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/tpolecat/skunk)
[kvs](https://github.com/zero-deps/kvs) | Highly available distributed strong eventual consistent and sequentially consistent storage with feeds and search | ![GitHub stars](https://img.shields.io/github/stars/zero-deps/kvs) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/zero-deps/kvs)

### Messaging

Name | Description | GitHub Activity
---- | ----------- | ---------------
[op-rabbit](https://github.com/SpinGo/op-rabbit) | The Opinionated RabbitMQ Library for Scala and Akka | ![GitHub stars](https://img.shields.io/github/stars/SpinGo/op-rabbit) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/SpinGo/op-rabbit)

### Graphical User Interfaces

*Libraries for creation of graphical user interfaces*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**scalafx**](https://github.com/scalafx/scalafx) | ScalaFX simplifies creation of JavaFX-based user interfaces in Scala | ![GitHub stars](https://img.shields.io/github/stars/scalafx/scalafx) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalafx/scalafx)

### Web Frameworks

*Scala frameworks for web development.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[analogweb-scala](https://github.com/analogweb/analogweb-scala) | Tiny High Performance HTTP Server for Scala  | ![GitHub stars](https://img.shields.io/github/stars/analogweb/analogweb-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/analogweb/analogweb-scala)
[chaos](https://github.com/mesosphere/chaos) | A lightweight framework for writing REST services in Scala. | ![GitHub stars](https://img.shields.io/github/stars/mesosphere/chaos) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/mesosphere/chaos)
[cask](https://github.com/com-lihaoyi/cask) | Cask: a Scala HTTP micro-framework | ![GitHub stars](https://img.shields.io/github/stars/com-lihaoyi/cask) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/com-lihaoyi/cask)
[**colossus**](https://github.com/tumblr/colossus) | I/O and Microservice library for Scala | ![GitHub stars](https://img.shields.io/github/stars/tumblr/colossus) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/tumblr/colossus)
[**finatra**](https://github.com/twitter/finatra) | Fast, testable, Scala services built on TwitterServer and Finagle | ![GitHub stars](https://img.shields.io/github/stars/twitter/finatra) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/twitter/finatra)
[**framework**](https://github.com/lift/framework) | Lift Framework | ![GitHub stars](https://img.shields.io/github/stars/lift/framework) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/lift/framework)
[peregrine](https://github.com/dvarelap/peregrine) | Async lightweight Scala web framework | ![GitHub stars](https://img.shields.io/github/stars/dvarelap/peregrine) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/dvarelap/peregrine)
[**playframework**](https://github.com/playframework/playframework) | Play Framework | ![GitHub stars](https://img.shields.io/github/stars/playframework/playframework) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/playframework/playframework)
[pagelets](https://github.com/splink/pagelets) | A module for the Play Framework to build highly modular applications | ![GitHub stars](https://img.shields.io/github/stars/splink/pagelets) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/splink/pagelets)
[reactive](https://github.com/nafg/reactive) | A simple FRP library and a web UI framework built on it | ![GitHub stars](https://img.shields.io/github/stars/nafg/reactive) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/nafg/reactive)
[**scalajs-react**](https://github.com/japgolly/scalajs-react) | Facebook's React on Scala.JS | ![GitHub stars](https://img.shields.io/github/stars/japgolly/scalajs-react) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/japgolly/scalajs-react)
[**scalatra**](https://github.com/scalatra/scalatra) | Tiny Scala high-performance, async web framework, inspired by Sinatra | ![GitHub stars](https://img.shields.io/github/stars/scalatra/scalatra) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalatra/scalatra)
[**skinny-framework**](https://github.com/skinny-framework/skinny-framework) | :monorail: "Scala on Rails" - A full-stack web app framework for rapid development in Scala | ![GitHub stars](https://img.shields.io/github/stars/skinny-framework/skinny-framework) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/skinny-framework/skinny-framework)
[**unfiltered**](https://github.com/unfiltered/unfiltered) | A toolkit for servicing HTTP requests in Scala | ![GitHub stars](https://img.shields.io/github/stars/unfiltered/unfiltered) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/unfiltered/unfiltered)
[xitrum](https://github.com/xitrum-framework/xitrum) | Async and clustered Scala web framework and HTTP(S) server | ![GitHub stars](https://img.shields.io/github/stars/xitrum-framework/xitrum) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/xitrum-framework/xitrum)
[youi](https://github.com/outr/youi) | Next generation user interface and application development in Scala and Scala.js for web, mobile, and desktop. | ![GitHub stars](https://img.shields.io/github/stars/outr/youi) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/outr/youi)

### Reactive Web Frameworks

*Scala libraries for Reactive Web development*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**Binding.scala**](https://github.com/ThoughtWorksInc/Binding.scala) | Reactive data-binding for Scala | ![GitHub stars](https://img.shields.io/github/stars/ThoughtWorksInc/Binding.scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ThoughtWorksInc/Binding.scala)
[**korolev**](https://github.com/fomkin/korolev) | Single Page Applications running on the server side. | ![GitHub stars](https://img.shields.io/github/stars/fomkin/korolev) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/fomkin/korolev)
[udash-core](https://github.com/UdashFramework/udash-core) | Scala framework for building beautiful and maintainable web applications. | ![GitHub stars](https://img.shields.io/github/stars/UdashFramework/udash-core) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/UdashFramework/udash-core)
[vertx-lang-scala](https://github.com/vert-x3/vertx-lang-scala) | Vert.x for Scala | ![GitHub stars](https://img.shields.io/github/stars/vert-x3/vertx-lang-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/vert-x3/vertx-lang-scala)

### Data Binding and Validation

*Scala libraries for data binding and validation*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**accord**](https://github.com/wix/accord) | Accord: A sane validation library for Scala | ![GitHub stars](https://img.shields.io/github/stars/wix/accord) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/wix/accord)
[dupin](https://github.com/yakivy/dupin) | Minimal, idiomatic, customizable validation Scala library. | ![GitHub stars](https://img.shields.io/github/stars/yakivy/dupin) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/yakivy/dupin)
[octopus](https://github.com/krzemin/octopus) | Scala library for boilerplate-free validation | ![GitHub stars](https://img.shields.io/github/stars/krzemin/octopus) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/krzemin/octopus)
[veto](https://github.com/splink/veto) | If you don't agree with the data | ![GitHub stars](https://img.shields.io/github/stars/splink/veto) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/splink/veto)
[fields](https://github.com/jap-company/fields) | Scala validation library | ![GitHub stars](https://img.shields.io/github/stars/jap-company/fields) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/jap-company/fields)

### i18n

*Scala libraries for i18n.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[scala-xgettext](https://github.com/xitrum-framework/scala-xgettext) | Scala compiler plugin that acts like GNU xgettext command to extract i18n strings in Scala source code files to Gettext .po file | ![GitHub stars](https://img.shields.io/github/stars/xitrum-framework/scala-xgettext) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/xitrum-framework/scala-xgettext)
[scaposer](https://github.com/xitrum-framework/scaposer) | GNU Gettext .po file loader for Scala | ![GitHub stars](https://img.shields.io/github/stars/xitrum-framework/scaposer) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/xitrum-framework/scaposer)

### Authentication

*Libraries for implementing authentications schemes.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[akka-http-session](https://github.com/softwaremill/akka-http-session) | Web & mobile client-side akka-http sessions, with optional JWT support | ![GitHub stars](https://img.shields.io/github/stars/softwaremill/akka-http-session) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/softwaremill/akka-http-session)
[aws-request-signer](https://github.com/ticofab/aws-request-signer) | Scala library to sign HTTP requests to AWS services. | ![GitHub stars](https://img.shields.io/github/stars/ticofab/aws-request-signer) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ticofab/aws-request-signer)
[OAuth2-mock-play](https://github.com/zalando-stups/OAuth2-mock-play) | An implementation of an OAuth2 server designed for mocking/testing | ![GitHub stars](https://img.shields.io/github/stars/zalando-stups/OAuth2-mock-play) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/zalando-stups/OAuth2-mock-play)
[play-googleauth](https://github.com/guardian/play-googleauth) | Simple play module for authenticating against Google | ![GitHub stars](https://img.shields.io/github/stars/guardian/play-googleauth) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/guardian/play-googleauth)
[play-pac4j](https://github.com/pac4j/play-pac4j) | Security library for Play framework 2 in Java and Scala: OAuth, CAS, SAML, OpenID Connect, LDAP, JWT... | ![GitHub stars](https://img.shields.io/github/stars/pac4j/play-pac4j) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/pac4j/play-pac4j)
[**play2-auth**](https://github.com/t2v/play2-auth) | Play2.x Authentication and Authorization module | ![GitHub stars](https://img.shields.io/github/stars/t2v/play2-auth) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/t2v/play2-auth)
[**scala-oauth2-provider**](https://github.com/nulab/scala-oauth2-provider) | OAuth 2.0 server-side implementation written in Scala | ![GitHub stars](https://img.shields.io/github/stars/nulab/scala-oauth2-provider) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/nulab/scala-oauth2-provider)
[**securesocial**](https://github.com/jaliss/securesocial) | A module that provides OAuth, OAuth2 and OpenID authentication for Play Framework applications | ![GitHub stars](https://img.shields.io/github/stars/jaliss/securesocial) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/jaliss/securesocial)

### Cryptography

*Cryptography and Encryption Libraries.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[scrypto](https://github.com/input-output-hk/scrypto) | Cryptographic primitives for Scala | ![GitHub stars](https://img.shields.io/github/stars/input-output-hk/scrypto) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/input-output-hk/scrypto)
[tsec](https://github.com/jmcardon/tsec) | Type-safe general-cryptography library - https://jmcardon.github.io/tsec/ | ![GitHub stars](https://img.shields.io/github/stars/jmcardon/tsec) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/jmcardon/tsec)
[jose](https://github.com/blackdoor/jose) | Extensible JOSE library for Scala | ![GitHub stars](https://img.shields.io/github/stars/blackdoor/jose) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/blackdoor/jose)

### Testing

*Libraries for code testing.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[cornichon](https://github.com/agourlay/cornichon) | Scala DSL for testing HTTP JSON API | ![GitHub stars](https://img.shields.io/github/stars/agourlay/cornichon) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/agourlay/cornichon)
[**gatling**](https://github.com/gatling/gatling) | Modern Load Testing as Code | ![GitHub stars](https://img.shields.io/github/stars/gatling/gatling) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/gatling/gatling)
[minitest](https://github.com/monix/minitest) | The super light testing library for Scala and Scala.js | ![GitHub stars](https://img.shields.io/github/stars/monix/minitest) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/monix/minitest)
[mockito-scala](https://github.com/mockito/mockito-scala) | Mockito for Scala language | ![GitHub stars](https://img.shields.io/github/stars/mockito/mockito-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/mockito/mockito-scala)
[munit](https://github.com/scalameta/munit) | Scala testing library with actionable errors and extensible APIs | ![GitHub stars](https://img.shields.io/github/stars/scalameta/munit) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalameta/munit)
[**scalacheck**](https://github.com/typelevel/scalacheck) | Property-based testing for Scala | ![GitHub stars](https://img.shields.io/github/stars/typelevel/scalacheck) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/typelevel/scalacheck)
[**scalameter**](https://github.com/scalameter/scalameter) | Microbenchmarking and performance regression testing framework for the JVM platform. | ![GitHub stars](https://img.shields.io/github/stars/scalameter/scalameter) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalameter/scalameter)
[ScalaMock](https://github.com/paulbutcher/ScalaMock) | Native Scala mocking framework | ![GitHub stars](https://img.shields.io/github/stars/paulbutcher/ScalaMock) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/paulbutcher/ScalaMock)
[scalaprops](https://github.com/scalaprops/scalaprops) | property based testing library for Scala | ![GitHub stars](https://img.shields.io/github/stars/scalaprops/scalaprops) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalaprops/scalaprops)
[**scalatest**](https://github.com/scalatest/scalatest) | A testing tool for Scala and Java developers | ![GitHub stars](https://img.shields.io/github/stars/scalatest/scalatest) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalatest/scalatest)
[scalive](https://github.com/xitrum-framework/scalive) | Connect a Scala REPL to running JVM processes without any prior setup | ![GitHub stars](https://img.shields.io/github/stars/xitrum-framework/scalive) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/xitrum-framework/scalive)
[**specs2**](https://github.com/etorreborre/specs2) | Software Specifications for Scala | ![GitHub stars](https://img.shields.io/github/stars/etorreborre/specs2) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/etorreborre/specs2)
[stryker4s](https://github.com/stryker-mutator/stryker4s) | Mutation testing for Scala | ![GitHub stars](https://img.shields.io/github/stars/stryker-mutator/stryker4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/stryker-mutator/stryker4s)
[weaver-test](https://github.com/disneystreaming/weaver-test) | A test framework that runs everything in parallel.  | ![GitHub stars](https://img.shields.io/github/stars/disneystreaming/weaver-test) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/disneystreaming/weaver-test)
[**testcontainers-scala**](https://github.com/testcontainers/testcontainers-scala) | Docker containers for testing in scala | ![GitHub stars](https://img.shields.io/github/stars/testcontainers/testcontainers-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/testcontainers/testcontainers-scala)
[utest](https://github.com/com-lihaoyi/utest) | A simple testing framework for Scala | ![GitHub stars](https://img.shields.io/github/stars/com-lihaoyi/utest) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/com-lihaoyi/utest)

### JSON

*Libraries for work with json.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**argonaut**](https://github.com/argonaut-io/argonaut) | Purely functional JSON parser and library in scala. | ![GitHub stars](https://img.shields.io/github/stars/argonaut-io/argonaut) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/argonaut-io/argonaut)
[borer](https://github.com/sirthias/borer) | Efficient CBOR and JSON (de)serialization in Scala | ![GitHub stars](https://img.shields.io/github/stars/sirthias/borer) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sirthias/borer)
[**circe**](https://github.com/circe/circe) | Yet another JSON library for Scala | ![GitHub stars](https://img.shields.io/github/stars/circe/circe) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/circe/circe)
[diffson](https://github.com/gnieh/diffson) | A scala diff/patch library for Json | ![GitHub stars](https://img.shields.io/github/stars/gnieh/diffson) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/gnieh/diffson)
[jackson-module-scala](https://github.com/FasterXML/jackson-module-scala) | Add-on module for Jackson (https://github.com/FasterXML/jackson) to support Scala-specific datatypes | ![GitHub stars](https://img.shields.io/github/stars/FasterXML/jackson-module-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/FasterXML/jackson-module-scala)
[jawn](https://github.com/typelevel/jawn) | Jawn is for parsing jay-sawn (JSON) | ![GitHub stars](https://img.shields.io/github/stars/typelevel/jawn) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/typelevel/jawn)
[**json4s**](https://github.com/json4s/json4s) | JSON library | ![GitHub stars](https://img.shields.io/github/stars/json4s/json4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/json4s/json4s)
[**jsoniter-scala**](https://github.com/plokhotnyuk/jsoniter-scala) | Scala macros for compile-time generation of safe and ultra-fast JSON codecs | ![GitHub stars](https://img.shields.io/github/stars/plokhotnyuk/jsoniter-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/plokhotnyuk/jsoniter-scala)
[json](https://github.com/nestorpersist/json) | Persist-Json, a Fast Json Parser Written in Scala | ![GitHub stars](https://img.shields.io/github/stars/nestorpersist/json) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/nestorpersist/json)
[ninny-json](https://github.com/nrktkt/ninny-json) | JSON typeclasses that know the difference between null and absent fields | ![GitHub stars](https://img.shields.io/github/stars/nrktkt/ninny-json) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/nrktkt/ninny-json)
[play-json](https://github.com/playframework/play-json) | The Play JSON library | ![GitHub stars](https://img.shields.io/github/stars/playframework/play-json) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/playframework/play-json)
[pushka](https://github.com/fomkin/pushka) | ABANDONED Pure Scala serialization library with annotations | ![GitHub stars](https://img.shields.io/github/stars/fomkin/pushka) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/fomkin/pushka)
[sbt-json](https://github.com/battermann/sbt-json) | sbt plugin that generates Scala case classes for easy, statically typed and implicit access of JSON data e.g. from API responses | ![GitHub stars](https://img.shields.io/github/stars/battermann/sbt-json) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/battermann/sbt-json)
[scala-jsonapi](https://github.com/scala-jsonapi/scala-jsonapi) | Scala support library for integrating the JSON API spec with Spray, Play! or Circe | ![GitHub stars](https://img.shields.io/github/stars/scala-jsonapi/scala-jsonapi) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scala-jsonapi/scala-jsonapi)
[ScalaJack](https://github.com/gzoller/ScalaJack) | Fast JSON parser/generator for Scala | ![GitHub stars](https://img.shields.io/github/stars/gzoller/ScalaJack) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/gzoller/ScalaJack)
[**spray-json**](https://github.com/spray/spray-json) | A lightweight, clean and simple JSON implementation in Scala | ![GitHub stars](https://img.shields.io/github/stars/spray/spray-json) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/spray/spray-json)
[zio-json](https://github.com/zio/zio-json) | Fast, secure JSON library with tight ZIO integration. | ![GitHub stars](https://img.shields.io/github/stars/zio/zio-json) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/zio/zio-json)

### YAML

*Libraries for work with YAML.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[moultingyaml](https://github.com/jcazevedo/moultingyaml) | Scala wrapper for SnakeYAML | ![GitHub stars](https://img.shields.io/github/stars/jcazevedo/moultingyaml) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/jcazevedo/moultingyaml)

### CSV

*Libraries for work with CSV.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[fm-flatfile](https://github.com/frugalmechanic/fm-flatfile) | Scala Library for Reading Flat File Data (CSV/TSV/XLS/XLSX) | ![GitHub stars](https://img.shields.io/github/stars/frugalmechanic/fm-flatfile) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/frugalmechanic/fm-flatfile)
[kantan.csv](https://github.com/nrinaudo/kantan.csv) | CSV handling library for Scala | ![GitHub stars](https://img.shields.io/github/stars/nrinaudo/kantan.csv) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/nrinaudo/kantan.csv)
[**scala-csv**](https://github.com/tototoshi/scala-csv) | CSV Reader/Writer for Scala | ![GitHub stars](https://img.shields.io/github/stars/tototoshi/scala-csv) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/tototoshi/scala-csv)
[spata](https://github.com/fingo/spata) | Functional, stream-based CSV processor for Scala | ![GitHub stars](https://img.shields.io/github/stars/fingo/spata) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/fingo/spata)

### Serialization

*Libraries for serializing and deserializing data for storage or transport.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[avro-codegen](https://github.com/malcolmgreaves/avro-codegen) | Scala code generator for Avro schemas. | ![GitHub stars](https://img.shields.io/github/stars/malcolmgreaves/avro-codegen) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/malcolmgreaves/avro-codegen)
[borer](https://github.com/sirthias/borer) | Efficient CBOR and JSON (de)serialization in Scala | ![GitHub stars](https://img.shields.io/github/stars/sirthias/borer) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sirthias/borer)
[**avro4s**](https://github.com/sksamuel/avro4s) | Avro schema generation and serialization / deserialization for Scala | ![GitHub stars](https://img.shields.io/github/stars/sksamuel/avro4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sksamuel/avro4s)
[**chill**](https://github.com/twitter/chill) | Scala extensions for the Kryo serialization library | ![GitHub stars](https://img.shields.io/github/stars/twitter/chill) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/twitter/chill)
[msgpack-scala](https://github.com/msgpack/msgpack-scala) | MessagePack serializer implementation for Scala / msgpack.org[Scala] | ![GitHub stars](https://img.shields.io/github/stars/msgpack/msgpack-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/msgpack/msgpack-scala)
[**ScalaPB**](https://github.com/scalapb/ScalaPB) | Protocol buffer compiler for Scala. | ![GitHub stars](https://img.shields.io/github/stars/scalapb/ScalaPB) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalapb/ScalaPB)
[**scodec**](https://github.com/scodec/scodec) | Scala combinator library for working with binary data | ![GitHub stars](https://img.shields.io/github/stars/scodec/scodec) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scodec/scodec)
[**scrooge**](https://github.com/twitter/scrooge) | A Thrift parser/generator | ![GitHub stars](https://img.shields.io/github/stars/twitter/scrooge) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/twitter/scrooge)
[**upickle**](https://github.com/com-lihaoyi/upickle) | uPickle: a simple, fast, dependency-free JSON & Binary (MessagePack) serialization library for Scala | ![GitHub stars](https://img.shields.io/github/stars/com-lihaoyi/upickle) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/com-lihaoyi/upickle)
[proto](https://github.com/zero-deps/proto) | Lightweight and fast serialization library for Scala 2/3 based on Protocol Buffers with macros | ![GitHub stars](https://img.shields.io/github/stars/zero-deps/proto) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/zero-deps/proto)

### Science and Data Analysis

*Libraries for scientific computing, data analysis and numerical processing.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**algebird**](https://github.com/twitter/algebird) | Abstract Algebra for Scala | ![GitHub stars](https://img.shields.io/github/stars/twitter/algebird) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/twitter/algebird)
[axle](https://github.com/axlelang/axle) | Axle Domain Specific Language for Scientific Cloud Computing and Visualization | ![GitHub stars](https://img.shields.io/github/stars/axlelang/axle) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/axlelang/axle)
[**BigDL**](https://github.com/intel-analytics/BigDL) | Building Large-Scale AI Applications for Distributed Big Data | ![GitHub stars](https://img.shields.io/github/stars/intel-analytics/BigDL) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/intel-analytics/BigDL)
[**breeze**](https://github.com/scalanlp/breeze) | Breeze is a numerical processing library for Scala. | ![GitHub stars](https://img.shields.io/github/stars/scalanlp/breeze) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalanlp/breeze)
[Clustering4Ever](https://github.com/Clustering4Ever/Clustering4Ever) | C4E, a JVM friendly library written in Scala for both local  and distributed (Spark) Clustering. | ![GitHub stars](https://img.shields.io/github/stars/Clustering4Ever/Clustering4Ever) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/Clustering4Ever/Clustering4Ever)
[doddle-model](https://github.com/picnicml/doddle-model) | :cake: doddle-model: machine learning in Scala. | ![GitHub stars](https://img.shields.io/github/stars/picnicml/doddle-model) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/picnicml/doddle-model)
[**figaro**](https://github.com/charles-river-analytics/figaro) | Figaro Programming Language and Core Libraries | ![GitHub stars](https://img.shields.io/github/stars/charles-river-analytics/figaro) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/charles-river-analytics/figaro)
[libra](https://github.com/to-ithaca/libra) | A dimensional analysis library based on dependent types | ![GitHub stars](https://img.shields.io/github/stars/to-ithaca/libra) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/to-ithaca/libra)
[LoMRF](https://github.com/anskarl/LoMRF) | LoMRF is an open-source implementation of Markov Logic Networks | ![GitHub stars](https://img.shields.io/github/stars/anskarl/LoMRF) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/anskarl/LoMRF)
[mgo](https://github.com/openmole/mgo) | Purely functional genetic algorithms for multi-objective optimisation | ![GitHub stars](https://img.shields.io/github/stars/openmole/mgo) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/openmole/mgo)
[MLLib](https://spark.apache.org/mllib/) | Machine Learning framework for Spark |
[NDScala](https://github.com/SciScala/NDScala) | N-dimensional arrays in Scala 3. Think NumPy ndarray, but type-safe over shapes, array/axis labels & numeric data types | ![GitHub stars](https://img.shields.io/github/stars/SciScala/NDScala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/SciScala/NDScala)
[numsca](https://github.com/botkop/numsca) | numsca is numpy for scala | ![GitHub stars](https://img.shields.io/github/stars/botkop/numsca) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/botkop/numsca)
[onnx-scala](https://github.com/EmergentOrder/onnx-scala) | An ONNX (Open Neural Network eXchange) API and backend for typeful, functional deep learning in Scala 3 | ![GitHub stars](https://img.shields.io/github/stars/EmergentOrder/onnx-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/EmergentOrder/onnx-scala)
[openmole](https://github.com/openmole/openmole) | Workflow engine for exploration of simulation models using high throughput computing | ![GitHub stars](https://img.shields.io/github/stars/openmole/openmole) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/openmole/openmole)
[Optimus](https://github.com/vagmcs/Optimus) | Optimus is a mathematical programming library for Scala. | ![GitHub stars](https://img.shields.io/github/stars/vagmcs/Optimus) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/vagmcs/Optimus)
[OscaR](https://bitbucket.org/oscarlib/oscar/wiki/Home) | a Scala toolkit for solving Operations Research problems |
[rings](https://github.com/PoslavskySV/rings) | Rings: efficient JVM library for polynomial rings | ![GitHub stars](https://img.shields.io/github/stars/PoslavskySV/rings) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/PoslavskySV/rings)
[**smile**](https://github.com/haifengl/smile) | Statistical Machine Intelligence & Learning Engine | ![GitHub stars](https://img.shields.io/github/stars/haifengl/smile) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/haifengl/smile)
[**spark-notebook**](https://github.com/spark-notebook/spark-notebook) | Interactive and Reactive Data Science using Scala and Spark. | ![GitHub stars](https://img.shields.io/github/stars/spark-notebook/spark-notebook) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/spark-notebook/spark-notebook)
[**spire**](https://github.com/typelevel/spire) | Powerful new number types and numeric abstractions for Scala. | ![GitHub stars](https://img.shields.io/github/stars/typelevel/spire) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/typelevel/spire)
[**squants**](https://github.com/typelevel/squants) | The Scala API for Quantities, Units of Measure and Dimensional Analysis | ![GitHub stars](https://img.shields.io/github/stars/typelevel/squants) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/typelevel/squants)
[Synapses](https://github.com/mrdimosthenis/Synapses) | A group of neural-network libraries for functional and mainstream languages | ![GitHub stars](https://img.shields.io/github/stars/mrdimosthenis/Synapses) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/mrdimosthenis/Synapses)
[**tensorflow_scala**](https://github.com/eaplatanios/tensorflow_scala) | TensorFlow API for the Scala Programming Language | ![GitHub stars](https://img.shields.io/github/stars/eaplatanios/tensorflow_scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/eaplatanios/tensorflow_scala)
[**zeppelin**](https://github.com/apache/zeppelin) | Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more. | ![GitHub stars](https://img.shields.io/github/stars/apache/zeppelin) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/apache/zeppelin)
[**spark-nlp**](https://github.com/JohnSnowLabs/spark-nlp) | State of the Art Natural Language Processing | ![GitHub stars](https://img.shields.io/github/stars/JohnSnowLabs/spark-nlp) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/JohnSnowLabs/spark-nlp)

### Big Data

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**BIDMach**](https://github.com/BIDData/BIDMach) | CPU and GPU-accelerated Machine Learning Library | ![GitHub stars](https://img.shields.io/github/stars/BIDData/BIDMach) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/BIDData/BIDMach)
[**flink**](https://github.com/apache/flink) | Apache Flink | ![GitHub stars](https://img.shields.io/github/stars/apache/flink) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/apache/flink)
[gridscale](https://github.com/openmole/gridscale) | Scala library for accessing various file, batch systems, job schedulers and grid middlewares. | ![GitHub stars](https://img.shields.io/github/stars/openmole/gridscale) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/openmole/gridscale)
[**kafka**](https://github.com/apache/kafka) | Mirror of Apache Kafka | ![GitHub stars](https://img.shields.io/github/stars/apache/kafka) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/apache/kafka)
[**alpakka-kafka**](https://github.com/akka/alpakka-kafka) | Alpakka Kafka connector - Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka. | ![GitHub stars](https://img.shields.io/github/stars/akka/alpakka-kafka) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/akka/alpakka-kafka)
[**scalding**](https://github.com/twitter/scalding) | A Scala API for Cascading | ![GitHub stars](https://img.shields.io/github/stars/twitter/scalding) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/twitter/scalding)
[schemer](https://github.com/indix/schemer) | Schema registry for CSV, TSV, JSON, AVRO and Parquet schema. Supports schema inference and GraphQL API. | ![GitHub stars](https://img.shields.io/github/stars/indix/schemer) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/indix/schemer)
[**scio**](https://github.com/spotify/scio) | A Scala API for Apache Beam and Google Cloud Dataflow. | ![GitHub stars](https://img.shields.io/github/stars/spotify/scio) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/spotify/scio)
[Scrunch](http://crunch.apache.org/scrunch.html) | A Scala wrapper for [Apache Crunch](http://crunch.apache.org/index.html) which provides a framework for writing, testing, and running MapReduce pipelines. |
[**spark**](https://github.com/apache/spark) | Apache Spark - A unified analytics engine for large-scale data processing | ![GitHub stars](https://img.shields.io/github/stars/apache/spark) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/apache/spark)
[sparkplug](https://github.com/indix/sparkplug) | Spark package to "plug" holes in data using SQL based rules ⚡ 🔌  | ![GitHub stars](https://img.shields.io/github/stars/indix/sparkplug) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/indix/sparkplug)
[**sparta**](https://github.com/Stratio/sparta) | Real Time Analytics and Data Pipelines based on Spark Streaming | ![GitHub stars](https://img.shields.io/github/stars/Stratio/sparta) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/Stratio/sparta)
[**summingbird**](https://github.com/twitter/summingbird) | Streaming MapReduce with Scalding and Storm | ![GitHub stars](https://img.shields.io/github/stars/twitter/summingbird) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/twitter/summingbird)
[**Vegas**](https://github.com/vegas-viz/Vegas) | The missing MatPlotLib for Scala + Spark | ![GitHub stars](https://img.shields.io/github/stars/vegas-viz/Vegas) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/vegas-viz/Vegas)
[gallia-core](https://github.com/galliaproject/gallia-core) | A schema-aware Scala library for data transformation | ![GitHub stars](https://img.shields.io/github/stars/galliaproject/gallia-core) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/galliaproject/gallia-core)

### Command Line Interfaces

*Libraries for creation of command line interfaces*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[clist](https://github.com/backuity/clist) | Command Line Interface Scala Toolkit | ![GitHub stars](https://img.shields.io/github/stars/backuity/clist) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/backuity/clist)
[**decline**](https://github.com/bkirwi/decline) | A composable command-line parser for Scala. | ![GitHub stars](https://img.shields.io/github/stars/bkirwi/decline) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/bkirwi/decline)
[mainargs](https://github.com/com-lihaoyi/mainargs) | A small, convenient, dependency-free library for command-line argument parsing in Scala | ![GitHub stars](https://img.shields.io/github/stars/com-lihaoyi/mainargs) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/com-lihaoyi/mainargs)
[**scallop**](https://github.com/scallop/scallop) | a simple Scala CLI parsing library | ![GitHub stars](https://img.shields.io/github/stars/scallop/scallop) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scallop/scallop)
[**scopt**](https://github.com/scopt/scopt) | command line options parsing for Scala | ![GitHub stars](https://img.shields.io/github/stars/scopt/scopt) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scopt/scopt)

### Image processing and image analysis

*2D and 3D image processing and image analysis*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[scala-phash](https://github.com/poslegm/scala-phash) | Image comparison by hash codes | ![GitHub stars](https://img.shields.io/github/stars/poslegm/scala-phash) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/poslegm/scala-phash)
[scalismo](https://github.com/unibas-gravis/scalismo) | Scalable Image Analysis and Shape Modelling | ![GitHub stars](https://img.shields.io/github/stars/unibas-gravis/scalismo) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/unibas-gravis/scalismo)
[**scrimage**](https://github.com/sksamuel/scrimage) | Java, Scala and Kotlin image processing library | ![GitHub stars](https://img.shields.io/github/stars/sksamuel/scrimage) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sksamuel/scrimage)

### Sound processing and music

Name | Description | GitHub Activity
---- | ----------- | ---------------
[Chromaprint.scala](https://github.com/mgdigital/Chromaprint.scala) | Chromaprint/AcoustID audio fingerprinting for the JVM | ![GitHub stars](https://img.shields.io/github/stars/mgdigital/Chromaprint.scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/mgdigital/Chromaprint.scala)
[ScalaCollider](https://github.com/Sciss/ScalaCollider) | A Scala sound synthesis library based on SuperCollider. | ![GitHub stars](https://img.shields.io/github/stars/Sciss/ScalaCollider) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/Sciss/ScalaCollider)

### Functional Reactive Programming

*Event streams, signals, observables, etc.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**fs2**](https://github.com/typelevel/fs2) | Compositional, streaming I/O library for Scala | ![GitHub stars](https://img.shields.io/github/stars/typelevel/fs2) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/typelevel/fs2)
[iteratee](https://github.com/travisbrown/iteratee) | Iteratees for Cats | ![GitHub stars](https://img.shields.io/github/stars/travisbrown/iteratee) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/travisbrown/iteratee)
[**monix**](https://github.com/monix/monix) | Asynchronous, Reactive Programming for Scala and Scala.js. | ![GitHub stars](https://img.shields.io/github/stars/monix/monix) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/monix/monix)
[reactors](https://github.com/storm-enroute/reactors) | A concurrent reactive programming framework. | ![GitHub stars](https://img.shields.io/github/stars/storm-enroute/reactors) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/storm-enroute/reactors)
[reactor-scala-extensions](https://github.com/spring-attic/reactor-scala-extensions) | A scala extension for Project Reactor's Flux and Mono | ![GitHub stars](https://img.shields.io/github/stars/spring-attic/reactor-scala-extensions) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/spring-attic/reactor-scala-extensions)
[REScala](https://github.com/rescala-lang/REScala) | REScala - reactive programming in OO applications | ![GitHub stars](https://img.shields.io/github/stars/rescala-lang/REScala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/rescala-lang/REScala)
[**RxScala**](https://github.com/ReactiveX/RxScala) | RxScala – Reactive Extensions for Scala – a library for composing asynchronous and event-based programs using observable sequences | ![GitHub stars](https://img.shields.io/github/stars/ReactiveX/RxScala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ReactiveX/RxScala)
[**scala.rx**](https://github.com/lihaoyi/scala.rx) | An experimental library for Functional Reactive Programming in Scala | ![GitHub stars](https://img.shields.io/github/stars/lihaoyi/scala.rx) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/lihaoyi/scala.rx)
[**zio**](https://github.com/zio/zio) | ZIO — A type-safe, composable library for async and concurrent programming in Scala | ![GitHub stars](https://img.shields.io/github/stars/zio/zio) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/zio/zio)
[SynapseGrid](https://github.com/Primetalk/SynapseGrid) | SynapseGrid is a framework for constructing dynamic low latency data flow systems. | ![GitHub stars](https://img.shields.io/github/stars/Primetalk/SynapseGrid) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/Primetalk/SynapseGrid)
[vertx-lang-scala](https://github.com/vert-x3/vertx-lang-scala) | Vert.x for Scala | ![GitHub stars](https://img.shields.io/github/stars/vert-x3/vertx-lang-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/vert-x3/vertx-lang-scala)
[wire-signals](https://github.com/wireapp/wire-signals) | A small and effective event-handling library for Scala | ![GitHub stars](https://img.shields.io/github/stars/wireapp/wire-signals) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/wireapp/wire-signals)

### Modularization and Dependency Injection

*Modularization of applications, dependency injection, etc.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**airframe**](https://github.com/wvlet/airframe) | Essential Building Blocks for Scala | ![GitHub stars](https://img.shields.io/github/stars/wvlet/airframe) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/wvlet/airframe)
[**izumi**](https://github.com/7mind/izumi) | Productivity-oriented collection of lightweight fancy stuff for Scala toolchain | ![GitHub stars](https://img.shields.io/github/stars/7mind/izumi) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/7mind/izumi)
[**macwire**](https://github.com/softwaremill/macwire) | Lightweight and Nonintrusive Scala Dependency Injection Library | ![GitHub stars](https://img.shields.io/github/stars/softwaremill/macwire) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/softwaremill/macwire)
[scala-guice](https://github.com/codingwell/scala-guice) | Scala extensions for Google Guice | ![GitHub stars](https://img.shields.io/github/stars/codingwell/scala-guice) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/codingwell/scala-guice)
[scaldi](https://github.com/scaldi/scaldi) | Lightweight Scala Dependency Injection Library | ![GitHub stars](https://img.shields.io/github/stars/scaldi/scaldi) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scaldi/scaldi)
[sclasner](https://github.com/xitrum-framework/sclasner) | Scala classpath scanner | ![GitHub stars](https://img.shields.io/github/stars/xitrum-framework/sclasner) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/xitrum-framework/sclasner)
[subcut](https://github.com/dickwall/subcut) | Scala Uniquely Bound Classes Under Traits | ![GitHub stars](https://img.shields.io/github/stars/dickwall/subcut) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/dickwall/subcut)
[jam](https://github.com/yakivy/jam) | Incredibly simple DI Scala library. | ![GitHub stars](https://img.shields.io/github/stars/yakivy/jam) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/yakivy/jam)

### Distributed Systems

*Libraries and frameworks for writing distributed applications.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**akka**](https://github.com/akka/akka) | Build highly concurrent, distributed, and resilient message-driven applications on the JVM | ![GitHub stars](https://img.shields.io/github/stars/akka/akka) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/akka/akka)
[akka-tracing](https://github.com/levkhomich/akka-tracing) | A distributed tracing extension for Akka. Provides integration with Play framework, Spray and Akka HTTP. | ![GitHub stars](https://img.shields.io/github/stars/levkhomich/akka-tracing) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/levkhomich/akka-tracing)
[annette](https://github.com/annetteplatform/annette) | Platform to build distributed, scalable, enterprise-wide business applications | ![GitHub stars](https://img.shields.io/github/stars/annetteplatform/annette) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/annetteplatform/annette)
[**curiodb**](https://github.com/stephenmcd/curiodb) | Distributed NoSQL Database | ![GitHub stars](https://img.shields.io/github/stars/stephenmcd/curiodb) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/stephenmcd/curiodb)
[**finagle**](https://github.com/twitter/finagle) | A fault tolerant, protocol-agnostic RPC system | ![GitHub stars](https://img.shields.io/github/stars/twitter/finagle) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/twitter/finagle)
[glokka](https://github.com/xitrum-framework/glokka) | Library to register and lookup actors by names in an Akka cluster | ![GitHub stars](https://img.shields.io/github/stars/xitrum-framework/glokka) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/xitrum-framework/glokka)
[**lagom**](https://github.com/lagom/lagom) | Reactive Microservices for the JVM | ![GitHub stars](https://img.shields.io/github/stars/lagom/lagom) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/lagom/lagom)
[parapet](https://github.com/parapet-io/parapet) | A purely functional library to build distributed and event-driven systems | ![GitHub stars](https://img.shields.io/github/stars/parapet-io/parapet) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/parapet-io/parapet)
[poppet](https://github.com/yakivy/poppet) | Minimal, type-safe RPC Scala library. | ![GitHub stars](https://img.shields.io/github/stars/yakivy/poppet) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/yakivy/poppet)
[reactors](https://github.com/reactors-io/reactors) | A foundational framework for distributed programming. | ![GitHub stars](https://img.shields.io/github/stars/reactors-io/reactors) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/reactors-io/reactors)

### Extensions

*Scala extensions.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**Ammonite**](https://github.com/com-lihaoyi/Ammonite) | Scala Scripting | ![GitHub stars](https://img.shields.io/github/stars/com-lihaoyi/Ammonite) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/com-lihaoyi/Ammonite)
[**better-files**](https://github.com/pathikrit/better-files) | Simple, safe and intuitive Scala I/O | ![GitHub stars](https://img.shields.io/github/stars/pathikrit/better-files) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/pathikrit/better-files)
[blindsight](https://github.com/tersesystems/blindsight) | Blindsight is a Scala logging API with DSL based structured logging, fluent logging, semantic logging, flow logging, and context aware logging. | ![GitHub stars](https://img.shields.io/github/stars/tersesystems/blindsight) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/tersesystems/blindsight)
[**cassovary**](https://github.com/twitter/cassovary) | Cassovary is a simple big graph processing library for the JVM | ![GitHub stars](https://img.shields.io/github/stars/twitter/cassovary) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/twitter/cassovary)
[**cats**](https://github.com/typelevel/cats) | Lightweight, modular, and extensible library for functional programming. | ![GitHub stars](https://img.shields.io/github/stars/typelevel/cats) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/typelevel/cats)
[**chimney**](https://github.com/scalalandio/chimney) | Scala library for boilerplate-free, type-safe data transformations | ![GitHub stars](https://img.shields.io/github/stars/scalalandio/chimney) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalalandio/chimney)
[chronoscala](https://github.com/chronoscala/chronoscala) | A JSR-310 port of nscala_time | ![GitHub stars](https://img.shields.io/github/stars/chronoscala/chronoscala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/chronoscala/chronoscala)
[Dsl.scala](https://github.com/ThoughtWorksInc/Dsl.scala) | A framework to create embedded Domain-Specific Languages in Scala | ![GitHub stars](https://img.shields.io/github/stars/ThoughtWorksInc/Dsl.scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ThoughtWorksInc/Dsl.scala)
[each](https://github.com/ThoughtWorksInc/each) | A macro library that converts native imperative syntax to scalaz's monadic expressions | ![GitHub stars](https://img.shields.io/github/stars/ThoughtWorksInc/each) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ThoughtWorksInc/each)
[**eff**](https://github.com/atnos-org/eff) | Eff monad for cats - https://atnos-org.github.io/eff | ![GitHub stars](https://img.shields.io/github/stars/atnos-org/eff) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/atnos-org/eff)
[enableIf.scala](https://github.com/ThoughtWorksInc/enableIf.scala) | A library that toggles Scala code at compile-time, like #if in C/C++ | ![GitHub stars](https://img.shields.io/github/stars/ThoughtWorksInc/enableIf.scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ThoughtWorksInc/enableIf.scala)
[**enumeratum**](https://github.com/lloydmeta/enumeratum) | A type-safe, reflection-free, powerful enumeration implementation for Scala with exhaustive pattern match warnings and helpful integrations. | ![GitHub stars](https://img.shields.io/github/stars/lloydmeta/enumeratum) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/lloydmeta/enumeratum)
[Freasy-Monad](https://github.com/Thangiee/Freasy-Monad) | Easy way to create Free Monad using Scala macros with first-class Intellij support. | ![GitHub stars](https://img.shields.io/github/stars/Thangiee/Freasy-Monad) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/Thangiee/Freasy-Monad)
[freedsl](https://github.com/ISCPIF/freedsl) | Practical effect composition library based on abstract wrapping type and the free monad | ![GitHub stars](https://img.shields.io/github/stars/ISCPIF/freedsl) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ISCPIF/freedsl)
[**freestyle**](https://github.com/frees-io/freestyle) | A cohesive & pragmatic framework of FP centric Scala libraries | ![GitHub stars](https://img.shields.io/github/stars/frees-io/freestyle) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/frees-io/freestyle)
[hamsters](https://github.com/scala-hamsters/hamsters) | A mini Scala utility library | ![GitHub stars](https://img.shields.io/github/stars/scala-hamsters/hamsters) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scala-hamsters/hamsters)
[lamma](https://github.com/maxcellent/lamma) | Lamma schedule generator for Scala is a professional schedule generation library for periodic schedules like fixed income coupon payment, equity deravitive fixing date generation etc.  | ![GitHub stars](https://img.shields.io/github/stars/maxcellent/lamma) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/maxcellent/lamma)
[larray](https://github.com/xerial/larray) | Large off-heap arrays and mmap files for Scala and Java | ![GitHub stars](https://img.shields.io/github/stars/xerial/larray) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/xerial/larray)
[log4s](https://github.com/Log4s/log4s) | High-performance SLF4J wrapper for Scala. | ![GitHub stars](https://img.shields.io/github/stars/Log4s/log4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/Log4s/log4s)
[**izumi**](https://github.com/7mind/izumi) | Productivity-oriented collection of lightweight fancy stuff for Scala toolchain | ![GitHub stars](https://img.shields.io/github/stars/7mind/izumi) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/7mind/izumi)
[**Monocle**](https://github.com/optics-dev/Monocle) | Optics library for Scala | ![GitHub stars](https://img.shields.io/github/stars/optics-dev/Monocle) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/optics-dev/Monocle)
[**nscala-time**](https://github.com/nscala-time/nscala-time) | A new Scala wrapper for Joda Time based on scala-time | ![GitHub stars](https://img.shields.io/github/stars/nscala-time/nscala-time) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/nscala-time/nscala-time)
[**quicklens**](https://github.com/softwaremill/quicklens) | Modify deeply nested case class fields | ![GitHub stars](https://img.shields.io/github/stars/softwaremill/quicklens) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/softwaremill/quicklens)
[scala-records](https://github.com/scala-records/scala-records) | Labeled records for Scala based on structural refinement types and macros. | ![GitHub stars](https://img.shields.io/github/stars/scala-records/scala-records) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scala-records/scala-records)
[**refined**](https://github.com/fthomas/refined) | Refinement types for Scala | ![GitHub stars](https://img.shields.io/github/stars/fthomas/refined) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/fthomas/refined)
[**scala-async**](https://github.com/scala/scala-async) | An asynchronous programming facility for Scala | ![GitHub stars](https://img.shields.io/github/stars/scala/scala-async) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scala/scala-async)
[**scala-graph**](https://github.com/scala-graph/scala-graph) | Graph for Scala is intended to provide basic graph functionality seamlessly fitting into the Scala Collection Library. Like the well known members of scala.collection, Graph for Scala is an in-memory graph library aiming at editing and traversing graphs, finding cycles etc. in a user-friendly way. | ![GitHub stars](https://img.shields.io/github/stars/scala-graph/scala-graph) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scala-graph/scala-graph)
[**scala-logging**](https://github.com/lightbend-labs/scala-logging) | Convenient and performant logging library for Scala wrapping SLF4J. | ![GitHub stars](https://img.shields.io/github/stars/lightbend-labs/scala-logging) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/lightbend-labs/scala-logging)
[**scalameta**](https://github.com/scalameta/scalameta) | Library to read, analyze, transform and generate Scala programs | ![GitHub stars](https://img.shields.io/github/stars/scalameta/scalameta) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalameta/scalameta)
[Scalactic](http://www.scalactic.org/) | Small library of utilities related to quality that helps keeping code clear and correct. |
[**scalaz**](https://github.com/scalaz/scalaz) | Principled Functional Programming in Scala | ![GitHub stars](https://img.shields.io/github/stars/scalaz/scalaz) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalaz/scalaz)
[scribe](https://github.com/outr/scribe) | The fastest logging library in the world. Built from scratch in Scala and programmatically configurable. | ![GitHub stars](https://img.shields.io/github/stars/outr/scribe) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/outr/scribe)
[**shapeless**](https://github.com/milessabin/shapeless) | Generic programming for Scala | ![GitHub stars](https://img.shields.io/github/stars/milessabin/shapeless) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/milessabin/shapeless)
[**simulacrum**](https://github.com/typelevel/simulacrum) | First class syntax support for type classes in Scala | ![GitHub stars](https://img.shields.io/github/stars/typelevel/simulacrum) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/typelevel/simulacrum)
[squid](https://github.com/epfldata/squid) | Squid – type-safe metaprogramming and compilation framework for Scala | ![GitHub stars](https://img.shields.io/github/stars/epfldata/squid) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/epfldata/squid)
[**tinylog**](https://github.com/tinylog-org/tinylog) | tinylog is a lightweight logging framework for Java, Kotlin, Scala, and Android | ![GitHub stars](https://img.shields.io/github/stars/tinylog-org/tinylog) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/tinylog-org/tinylog)
[**util**](https://github.com/twitter/util) | Wonderful reusable code from Twitter | ![GitHub stars](https://img.shields.io/github/stars/twitter/util) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/twitter/util)

### Misc

*Projects that don't fit into any specific category.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[Agora](https://gitlab.com/aossie/Agora/) | Library of vote-counting algorithms for elections. |
[**Ammonite**](https://github.com/com-lihaoyi/Ammonite) | Scala Scripting | ![GitHub stars](https://img.shields.io/github/stars/com-lihaoyi/Ammonite) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/com-lihaoyi/Ammonite)
[aws4s](https://github.com/aws4s/aws4s) | Non-blocking AWS SDK for Scala exposing strongly-typed APIs built on top of http4s, fs2 and cats | ![GitHub stars](https://img.shields.io/github/stars/aws4s/aws4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/aws4s/aws4s)
[**bootzooka**](https://github.com/softwaremill/bootzooka) | Simple project to quickly start developing a Scala-based microservice or web application, without the need to write login, user registration etc. | ![GitHub stars](https://img.shields.io/github/stars/softwaremill/bootzooka) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/softwaremill/bootzooka)
[**eclair**](https://github.com/ACINQ/eclair) | A scala implementation of the Lightning Network. | ![GitHub stars](https://img.shields.io/github/stars/ACINQ/eclair) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ACINQ/eclair)
[fansi](https://github.com/com-lihaoyi/fansi) | Scala/Scala.js library for manipulating Fancy Ansi colored strings | ![GitHub stars](https://img.shields.io/github/stars/com-lihaoyi/fansi) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/com-lihaoyi/fansi)
[figlet4s](https://github.com/ColOfAbRiX/figlet4s) | ASCII-art banners in Scala | ![GitHub stars](https://img.shields.io/github/stars/ColOfAbRiX/figlet4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ColOfAbRiX/figlet4s)
[fs2-aws](https://github.com/laserdisc-io/fs2-aws) | fs2 utilities to interact with AWS | ![GitHub stars](https://img.shields.io/github/stars/laserdisc-io/fs2-aws) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/laserdisc-io/fs2-aws)
[google4s](https://github.com/toknapp/google4s) | A lean, functional library for Google Cloud Services in Scala | ![GitHub stars](https://img.shields.io/github/stars/toknapp/google4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/toknapp/google4s)
[google-api-scala](https://github.com/EckerdCollege/google-api-scala) | This API is a wrapper for the google java libraries. Currently mapping Admin Directory, Drive, and Calendar. | ![GitHub stars](https://img.shields.io/github/stars/EckerdCollege/google-api-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/EckerdCollege/google-api-scala)
[mailgun4s](https://github.com/outr/mailgun4s) | Mailgun API implementation in Scala | ![GitHub stars](https://img.shields.io/github/stars/outr/mailgun4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/outr/mailgun4s)
[managerial](https://github.com/dvgica/managerial) | A zero-dependency Scala library for managing resources monadically | ![GitHub stars](https://img.shields.io/github/stars/dvgica/managerial) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/dvgica/managerial)
[media4s](https://github.com/outr/media4s) | Scala command-line wrapper around ffmpeg, ffprobe, ImageMagick, and other tools relating to media. | ![GitHub stars](https://img.shields.io/github/stars/outr/media4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/outr/media4s)
[miniboxing-plugin](https://github.com/miniboxing/miniboxing-plugin) | Miniboxing is a program transformation that improves the performance of Scala generics when used with primitive types. It can speed up generic collections by factors between 1.5x and 22x, while maintaining bytecode duplication to a minimum. You can easily add miniboxing to your sbt project: | ![GitHub stars](https://img.shields.io/github/stars/miniboxing/miniboxing-plugin) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/miniboxing/miniboxing-plugin)
[ostinato](https://github.com/marianogappa/ostinato) | A chess library that runs on the server (Scala) and on the browser (ScalaJS). | ![GitHub stars](https://img.shields.io/github/stars/marianogappa/ostinato) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/marianogappa/ostinato)
[play-swagger](https://github.com/iheartradio/play-swagger) | Swagger spec generator for play framework | ![GitHub stars](https://img.shields.io/github/stars/iheartradio/play-swagger) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/iheartradio/play-swagger)
[PPrint](https://github.com/com-lihaoyi/PPrint) | Pretty-printing value, types and type-signatures in Scala | ![GitHub stars](https://img.shields.io/github/stars/com-lihaoyi/PPrint) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/com-lihaoyi/PPrint)
[**pureconfig**](https://github.com/pureconfig/pureconfig) | A boilerplate-free library for loading configuration files | ![GitHub stars](https://img.shields.io/github/stars/pureconfig/pureconfig) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/pureconfig/pureconfig)
[REPLesent](https://github.com/marconilanna/REPLesent) | A neat little tool to build presentations using the Scala REPL | ![GitHub stars](https://img.shields.io/github/stars/marconilanna/REPLesent) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/marconilanna/REPLesent)
[scala-ssh](https://github.com/sirthias/scala-ssh) | Remote shell access via SSH for your Scala applications | ![GitHub stars](https://img.shields.io/github/stars/sirthias/scala-ssh) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sirthias/scala-ssh)
[scala-stm](https://github.com/nbronson/scala-stm) | A library-based Software Transactional Memory (STM) for Scala, coupled with transactional sets and maps | ![GitHub stars](https://img.shields.io/github/stars/nbronson/scala-stm) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/nbronson/scala-stm)
[Scavenger](https://gitlab.com/aossie/Scavenger) | An experimental automated theorem prover. |
[service-chassis](https://github.com/allawala/service-chassis) | A scala chassis to get your applications and services bootstrapped quickly | ![GitHub stars](https://img.shields.io/github/stars/allawala/service-chassis) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/allawala/service-chassis)
[spliff](https://github.com/sirthias/spliff) | Efficient diffing in Scala | ![GitHub stars](https://img.shields.io/github/stars/sirthias/spliff) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sirthias/spliff)
[scountries](https://github.com/lambdaworks/scountries) | Scala library that provides an enumeration of ISO 3166 codes for countries, along with their subdivisions. | ![GitHub stars](https://img.shields.io/github/stars/lambdaworks/scountries) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/lambdaworks/scountries)

### Android

*Scala libraries and wrappers for Android development.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**sbt-android**](https://github.com/scala-android/sbt-android) | An easy-to-use sbt plugin for working with all Android projects | ![GitHub stars](https://img.shields.io/github/stars/scala-android/sbt-android) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scala-android/sbt-android)
[**scaloid**](https://github.com/pocorall/scaloid) | Scaloid makes your Android code easy to understand and maintain. | ![GitHub stars](https://img.shields.io/github/stars/pocorall/scaloid) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/pocorall/scaloid)

### HTTP

*Scala libraries and wrappers for HTTP clients.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**akka-http**](https://github.com/akka/akka-http) | The Streaming-first HTTP server/module of Akka | ![GitHub stars](https://img.shields.io/github/stars/akka/akka-http) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/akka/akka-http)
[reboot](https://github.com/dispatch/reboot) | Scala wrapper for the Java AsyncHttpClient. | ![GitHub stars](https://img.shields.io/github/stars/dispatch/reboot) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/dispatch/reboot)
[**finch**](https://github.com/finagle/finch) | Scala combinator library for building Finagle HTTP services | ![GitHub stars](https://img.shields.io/github/stars/finagle/finch) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/finagle/finch)
[fintrospect](https://github.com/daviddenton/fintrospect) | Implement fast, type-safe HTTP webservices for Finagle | ![GitHub stars](https://img.shields.io/github/stars/daviddenton/fintrospect) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/daviddenton/fintrospect)
[**http4s**](https://github.com/http4s/http4s) | A minimal, idiomatic Scala interface for HTTP | ![GitHub stars](https://img.shields.io/github/stars/http4s/http4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/http4s/http4s)
[jefe](https://github.com/outr/jefe) | Manages installation, updating, downloading, launching, error reporting, and more for your application. | ![GitHub stars](https://img.shields.io/github/stars/outr/jefe) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/outr/jefe)
[lolhttp](https://github.com/criteo/lolhttp) | An HTTP Server and Client library for Scala. | ![GitHub stars](https://img.shields.io/github/stars/criteo/lolhttp) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/criteo/lolhttp)
[**requests-scala**](https://github.com/com-lihaoyi/requests-scala) | A Scala port of the popular Python Requests HTTP client: flexible, intuitive, and straightforward to use. | ![GitHub stars](https://img.shields.io/github/stars/com-lihaoyi/requests-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/com-lihaoyi/requests-scala)
[RosHTTP](https://github.com/hmil/RosHTTP) | Unified Scala.js + Scala HTTP client API | ![GitHub stars](https://img.shields.io/github/stars/hmil/RosHTTP) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/hmil/RosHTTP)
[**scalaj-http**](https://github.com/scalaj/scalaj-http) | Simple scala wrapper for HttpURLConnection.  OAuth included. | ![GitHub stars](https://img.shields.io/github/stars/scalaj/scalaj-http) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalaj/scalaj-http)
[scalaxb](https://github.com/eed3si9n/scalaxb) | scalaxb is an XML data binding tool for Scala. | ![GitHub stars](https://img.shields.io/github/stars/eed3si9n/scalaxb) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/eed3si9n/scalaxb)
[**sttp**](https://github.com/softwaremill/sttp) | The Scala HTTP client you always wanted! | ![GitHub stars](https://img.shields.io/github/stars/softwaremill/sttp) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/softwaremill/sttp)
[**tapir**](https://github.com/softwaremill/tapir) | Declarative, type-safe web endpoints library | ![GitHub stars](https://img.shields.io/github/stars/softwaremill/tapir) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/softwaremill/tapir)
[endpoints4s](https://github.com/endpoints4s/endpoints4s) | Describe HTTP endpoints in Scala and derive clients, servers, and documentation | ![GitHub stars](https://img.shields.io/github/stars/endpoints4s/endpoints4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/endpoints4s/endpoints4s)
[frontier](https://github.com/zero-deps/frontier) | Fast, efficient, pure-functional, effect-free websocket, http and udp server, http client and telegram bot | ![GitHub stars](https://img.shields.io/github/stars/zero-deps/frontier) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/zero-deps/frontier)

### Semantic Web

*Scala libraries for interactions with the Web of Data, and other RDF tools.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[banana-rdf](https://github.com/banana-rdf/banana-rdf) | Banana RDF | ![GitHub stars](https://img.shields.io/github/stars/banana-rdf/banana-rdf) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/banana-rdf/banana-rdf)
[scowl](https://github.com/phenoscape/scowl) | A Scala DSL for programming with the OWL API. | ![GitHub stars](https://img.shields.io/github/stars/phenoscape/scowl) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/phenoscape/scowl)

### Metrics and Monitoring

*Scala libraries for gathering metrics and monitoring applications.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[metrics-scala](https://github.com/erikvanoosten/metrics-scala) | The scala API for Dropwizard's Metrics. | ![GitHub stars](https://img.shields.io/github/stars/erikvanoosten/metrics-scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/erikvanoosten/metrics-scala)

### Parsing

*Scala libraries for creating parsers.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[atto](https://github.com/tpolecat/atto) | friendly little parsers | ![GitHub stars](https://img.shields.io/github/stars/tpolecat/atto) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/tpolecat/atto)
[**fastparse**](https://github.com/com-lihaoyi/fastparse) | Writing Fast Parsers Fast in Scala | ![GitHub stars](https://img.shields.io/github/stars/com-lihaoyi/fastparse) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/com-lihaoyi/fastparse)
[**parboiled2**](https://github.com/sirthias/parboiled2) | A macro-based PEG parser generator for Scala 2.10+ | ![GitHub stars](https://img.shields.io/github/stars/sirthias/parboiled2) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sirthias/parboiled2)
[**scala-parser-combinators**](https://github.com/scala/scala-parser-combinators) | simple combinator-based parsing for Scala. formerly part of the Scala standard library, now a separate community-maintained module | ![GitHub stars](https://img.shields.io/github/stars/scala/scala-parser-combinators) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scala/scala-parser-combinators)
[cats-parse](https://github.com/typelevel/cats-parse) | A parsing library for the cats ecosystem | ![GitHub stars](https://img.shields.io/github/stars/typelevel/cats-parse) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/typelevel/cats-parse)
[scallion](https://github.com/epfl-lara/scallion) | LL(1) parser combinators in Scala | ![GitHub stars](https://img.shields.io/github/stars/epfl-lara/scallion) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/epfl-lara/scallion)

### Sbt plugins

*Sbt plugins to make your life easier.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**better-monadic-for**](https://github.com/oleg-py/better-monadic-for) | Desugaring scala `for` without implicit `withFilter`s | ![GitHub stars](https://img.shields.io/github/stars/oleg-py/better-monadic-for) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/oleg-py/better-monadic-for)
[**coursier**](https://github.com/coursier/coursier) | Pure Scala Artifact Fetching | ![GitHub stars](https://img.shields.io/github/stars/coursier/coursier) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/coursier/coursier)
[mdoc](https://github.com/scalameta/mdoc) | Typechecked markdown documentation for Scala | ![GitHub stars](https://img.shields.io/github/stars/scalameta/mdoc) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalameta/mdoc)
[sbt-api-mappings](https://github.com/ThoughtWorksInc/sbt-api-mappings) | An Sbt plugin that fills apiMappings for common Scala libraries. | ![GitHub stars](https://img.shields.io/github/stars/ThoughtWorksInc/sbt-api-mappings) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ThoughtWorksInc/sbt-api-mappings)
[sbt-apidoc](https://github.com/valydia/sbt-apidoc) | A port of apidocjs https://apidocjs.com to sbt, to document REST Api | ![GitHub stars](https://img.shields.io/github/stars/valydia/sbt-apidoc) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/valydia/sbt-apidoc)
[**sbt-assembly**](https://github.com/sbt/sbt-assembly) | Deploy über-JARs. Restart processes. (port of codahale/assembly-sbt) | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-assembly) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-assembly)
[**sbt-buildinfo**](https://github.com/sbt/sbt-buildinfo) | I know this because build.sbt knows this. | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-buildinfo) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-buildinfo)
[sbt-ci-release](https://github.com/sbt/sbt-ci-release) | sbt plugin to automate Sonatype releases from GitHub Actions | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-ci-release) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-ci-release)
[sbt-dependency-check](https://github.com/albuch/sbt-dependency-check) | SBT Plugin for OWASP DependencyCheck. Monitor your dependencies and report if there are any publicly known vulnerabilities (e.g. CVEs). :rainbow: | ![GitHub stars](https://img.shields.io/github/stars/albuch/sbt-dependency-check) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/albuch/sbt-dependency-check)
[**sbt-docker**](https://github.com/marcuslonnberg/sbt-docker) | Create Docker images directly from sbt | ![GitHub stars](https://img.shields.io/github/stars/marcuslonnberg/sbt-docker) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/marcuslonnberg/sbt-docker)
[sbt-doctest](https://github.com/tkawachi/sbt-doctest) | Doctest for scala | ![GitHub stars](https://img.shields.io/github/stars/tkawachi/sbt-doctest) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/tkawachi/sbt-doctest)
[sbt-ghpages](https://github.com/sbt/sbt-ghpages) | git, site and ghpages support for sbt projects. | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-ghpages) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-ghpages)
[sbt-groll](https://github.com/sbt/sbt-groll) | sbt plugin to roll the Git history | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-groll) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-groll)
[sbt-header](https://github.com/sbt/sbt-header) | sbt-header is an sbt plugin for creating file headers, e.g. copyright headers | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-header) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-header)
[sbt-hepek](https://github.com/sake92/sbt-hepek) | Sbt plugin for rendering Scala objects to files. And more! | ![GitHub stars](https://img.shields.io/github/stars/sake92/sbt-hepek) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sake92/sbt-hepek)
[sbt-ide-settings](https://github.com/JetBrains/sbt-ide-settings) | SBT plugin for tweaking various IDE settings | ![GitHub stars](https://img.shields.io/github/stars/JetBrains/sbt-ide-settings) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/JetBrains/sbt-ide-settings)
[**sbt-jmh**](https://github.com/sbt/sbt-jmh) | "Trust no one, bench everything." - sbt plugin for JMH (Java Microbenchmark Harness) | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-jmh) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-jmh)
[sbt-microsites](https://github.com/47degrees/sbt-microsites) | An sbt plugin to create awesome microsites for your project | ![GitHub stars](https://img.shields.io/github/stars/47degrees/sbt-microsites) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/47degrees/sbt-microsites)
[mima](https://github.com/lightbend/mima) | A tool for catching binary incompatibility in Scala | ![GitHub stars](https://img.shields.io/github/stars/lightbend/mima) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/lightbend/mima)
[**sbt-native-packager**](https://github.com/sbt/sbt-native-packager) | sbt Native Packager | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-native-packager) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-native-packager)
[sbt-pack](https://github.com/xerial/sbt-pack) | A sbt plugin for creating distributable Scala packages. | ![GitHub stars](https://img.shields.io/github/stars/xerial/sbt-pack) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/xerial/sbt-pack)
[sbt-pgp](https://github.com/sbt/sbt-pgp) | PGP plugin for sbt | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-pgp) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-pgp)
[**sbt-release**](https://github.com/sbt/sbt-release) | A release plugin for sbt | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-release) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-release)
[**sbt-revolver**](https://github.com/spray/sbt-revolver) | An SBT plugin for dangerously fast development turnaround in Scala | ![GitHub stars](https://img.shields.io/github/stars/spray/sbt-revolver) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/spray/sbt-revolver)
[sbt-scala-js-map](https://github.com/ThoughtWorksInc/sbt-scala-js-map) | A Sbt plugin that configures source mapping for Scala.js projects hosted on Github | ![GitHub stars](https://img.shields.io/github/stars/ThoughtWorksInc/sbt-scala-js-map) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ThoughtWorksInc/sbt-scala-js-map)
[sbt-scalafmt](https://github.com/scalameta/sbt-scalafmt) | sbt plugin for Scalafmt | ![GitHub stars](https://img.shields.io/github/stars/scalameta/sbt-scalafmt) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalameta/sbt-scalafmt)
[**sbt-scoverage**](https://github.com/scoverage/sbt-scoverage) | sbt plugin for scoverage | ![GitHub stars](https://img.shields.io/github/stars/scoverage/sbt-scoverage) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scoverage/sbt-scoverage)
[sbt-site](https://github.com/sbt/sbt-site) | Site generation for sbt | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-site) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-site)
[sbt-sonatype](https://github.com/xerial/sbt-sonatype) | A sbt plugin for publishing Scala/Java projects to the Maven central. | ![GitHub stars](https://img.shields.io/github/stars/xerial/sbt-sonatype) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/xerial/sbt-sonatype)
[sbt-unidoc](https://github.com/sbt/sbt-unidoc) | sbt plugin to create a unified Scaladoc or Javadoc API document across multiple subprojects. | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-unidoc) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-unidoc)
[**sbt-updates**](https://github.com/rtimush/sbt-updates) | sbt plugin that can check Maven and Ivy repositories for dependency updates | ![GitHub stars](https://img.shields.io/github/stars/rtimush/sbt-updates) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/rtimush/sbt-updates)
[**sbt-eclipse**](https://github.com/sbt/sbt-eclipse) | Plugin for sbt to create Eclipse project definitions | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-eclipse) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-eclipse)
[scala-clippy](https://github.com/softwaremill/scala-clippy) | Good advice for Scala compiler errors | ![GitHub stars](https://img.shields.io/github/stars/softwaremill/scala-clippy) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/softwaremill/scala-clippy)
[splain](https://github.com/tek/splain) | better implicit errors for scala | ![GitHub stars](https://img.shields.io/github/stars/tek/splain) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/tek/splain)
[**tut**](https://github.com/tpolecat/tut) | doc/tutorial generator for scala | ![GitHub stars](https://img.shields.io/github/stars/tpolecat/tut) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/tpolecat/tut)
[xsbt-web-plugin](https://github.com/earldouglas/xsbt-web-plugin) | Servlet support for sbt | ![GitHub stars](https://img.shields.io/github/stars/earldouglas/xsbt-web-plugin) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/earldouglas/xsbt-web-plugin)
[sbt-deploy-ssh](https://github.com/shmishleniy/sbt-deploy-ssh) | SBT deploy plugin | ![GitHub stars](https://img.shields.io/github/stars/shmishleniy/sbt-deploy-ssh) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/shmishleniy/sbt-deploy-ssh)
[sbt-git](https://github.com/sbt/sbt-git) | A git plugin for SBT | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt-git) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt-git)
[sbt-git](https://github.com/zero-deps/sbt-git) | Use git-describe as a version and run git commands inside SBT shell | ![GitHub stars](https://img.shields.io/github/stars/zero-deps/sbt-git) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/zero-deps/sbt-git)

### XML / HTML

*XML and HTML generation and processing*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**scala-scraper**](https://github.com/ruippeixotog/scala-scraper) | A Scala library for scraping content from HTML pages | ![GitHub stars](https://img.shields.io/github/stars/ruippeixotog/scala-scraper) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ruippeixotog/scala-scraper)
[xs4s](https://github.com/ScalaWilliam/xs4s) | XML Streaming for Scala including FS2/cats support | ![GitHub stars](https://img.shields.io/github/stars/ScalaWilliam/xs4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/ScalaWilliam/xs4s)

### Markdown

Name | Description | GitHub Activity
---- | ----------- | ---------------
[Laika](https://github.com/planet42/Laika) | Text Markup Transformer for sbt and Scala applications, transforming Markdown and reStructuredText to HTML, EPUB and PDF | ![GitHub stars](https://img.shields.io/github/stars/planet42/Laika) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/planet42/Laika)

### JavaScript

*JavaScript generation and interop libraries.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[scalafiddle-editor](https://github.com/scalafiddle/scalafiddle-editor) | Web user interface for ScalaFiddle | ![GitHub stars](https://img.shields.io/github/stars/scalafiddle/scalafiddle-editor) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalafiddle/scalafiddle-editor)
[**scala-js**](https://github.com/scala-js/scala-js) | Scala.js, the Scala to JavaScript compiler | ![GitHub stars](https://img.shields.io/github/stars/scala-js/scala-js) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scala-js/scala-js)

### Scheduling

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**akka-quartz-scheduler**](https://github.com/enragedginger/akka-quartz-scheduler) | Quartz Extension and utilities for cron-style scheduling in Akka | ![GitHub stars](https://img.shields.io/github/stars/enragedginger/akka-quartz-scheduler) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/enragedginger/akka-quartz-scheduler)

### Templating

*Web templating engines.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[beard](https://github.com/zalando/beard) | A lightweight, logicless templating engine, written in Scala and inspired by Mustache | ![GitHub stars](https://img.shields.io/github/stars/zalando/beard) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/zalando/beard)
[**scalatags**](https://github.com/com-lihaoyi/scalatags) | ScalaTags is a small XML/HTML construction library for Scala.  | ![GitHub stars](https://img.shields.io/github/stars/com-lihaoyi/scalatags) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/com-lihaoyi/scalatags)
[**scalate**](https://github.com/scalate/scalate) | Scalate is a Scala based template engine which supports HAML, Mustache and JSP, Erb and Velocity style syntaxes. | ![GitHub stars](https://img.shields.io/github/stars/scalate/scalate) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalate/scalate)
[**twirl**](https://github.com/playframework/twirl) | Twirl is Play's default template engine | ![GitHub stars](https://img.shields.io/github/stars/playframework/twirl) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/playframework/twirl)
[hepek](https://github.com/sake92/hepek) | Typesafe HTML templates in pure Scala. Static site generator included! Play and ScalaJS support! | ![GitHub stars](https://img.shields.io/github/stars/sake92/hepek) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sake92/hepek)

### Tools

Name | Description | GitHub Activity
---- | ----------- | ---------------
[scala-trace-debug](https://github.com/JohnReedLOL/scala-trace-debug) | Macro based print debugging. Locates log statements in your IDE. | ![GitHub stars](https://img.shields.io/github/stars/JohnReedLOL/scala-trace-debug) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/JohnReedLOL/scala-trace-debug)
[**bloop**](https://github.com/scalacenter/bloop) | Bloop is a build server and CLI tool to compile, test and run Scala fast from any editor or build tool. | ![GitHub stars](https://img.shields.io/github/stars/scalacenter/bloop) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalacenter/bloop)
[codacy-scalameta](https://github.com/codacy/codacy-scalameta) | Codacy tool for Scalameta | ![GitHub stars](https://img.shields.io/github/stars/codacy/codacy-scalameta) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/codacy/codacy-scalameta)
[**coursier**](https://github.com/coursier/coursier) | Pure Scala Artifact Fetching | ![GitHub stars](https://img.shields.io/github/stars/coursier/coursier) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/coursier/coursier)
[dregex](https://github.com/marianobarrios/dregex) | Dregex is a JVM library that implements a regular expression engine using deterministic finite automata (DFA). It supports some Perl-style features and yet retains linear matching time, and also offers set operations. | ![GitHub stars](https://img.shields.io/github/stars/marianobarrios/dregex) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/marianobarrios/dregex)
[fast-string-interpolator](https://github.com/plokhotnyuk/fast-string-interpolator) | Scala macro that generates ultra-fast string interpolators. | ![GitHub stars](https://img.shields.io/github/stars/plokhotnyuk/fast-string-interpolator) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/plokhotnyuk/fast-string-interpolator)
[fastring](https://github.com/Atry/fastring) | Extremely fast string formatting | ![GitHub stars](https://img.shields.io/github/stars/Atry/fastring) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/Atry/fastring)
[**gitbucket**](https://github.com/gitbucket/gitbucket) | A Git platform powered by Scala with easy installation, high extensibility & GitHub API compatibility | ![GitHub stars](https://img.shields.io/github/stars/gitbucket/gitbucket) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/gitbucket/gitbucket)
[**giter8**](https://github.com/foundweekends/giter8) | a command line tool to apply templates defined on GitHub  | ![GitHub stars](https://img.shields.io/github/stars/foundweekends/giter8) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/foundweekends/giter8)
[**metals**](https://github.com/scalameta/metals) | Scala language server with rich IDE features 🚀  | ![GitHub stars](https://img.shields.io/github/stars/scalameta/metals) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalameta/metals)
[**mill**](https://github.com/com-lihaoyi/mill) | Your shiny new Java/Scala build tool! | ![GitHub stars](https://img.shields.io/github/stars/com-lihaoyi/mill) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/com-lihaoyi/mill)
[pos](https://github.com/JohnReedLOL/pos) | Macro based print debugging. Locates debug statements in your IDE. Supports logging. | ![GitHub stars](https://img.shields.io/github/stars/JohnReedLOL/pos) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/JohnReedLOL/pos)
[**sbt**](https://github.com/sbt/sbt) | sbt, the interactive build tool | ![GitHub stars](https://img.shields.io/github/stars/sbt/sbt) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sbt/sbt)
[**scalafix**](https://github.com/scalacenter/scalafix) | Refactoring and linting tool for Scala | ![GitHub stars](https://img.shields.io/github/stars/scalacenter/scalafix) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalacenter/scalafix)
[Scalafmt](https://scalameta.org/scalafmt/) | Code formatter for Scala |
[**scalariform**](https://github.com/scala-ide/scalariform) | Scala source code formatter | ![GitHub stars](https://img.shields.io/github/stars/scala-ide/scalariform) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scala-ide/scalariform)
[**scalastyle**](https://github.com/scalastyle/scalastyle) | scalastyle | ![GitHub stars](https://img.shields.io/github/stars/scalastyle/scalastyle) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scalastyle/scalastyle)
[Scalatex](https://github.com/lihaoyi/Scalatex) | Programmable, Typesafe Document Generation | ![GitHub stars](https://img.shields.io/github/stars/lihaoyi/Scalatex) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/lihaoyi/Scalatex)
[scapegoat](https://github.com/scapegoat-scala/scapegoat) | Scala compiler plugin for static code analysis | ![GitHub stars](https://img.shields.io/github/stars/scapegoat-scala/scapegoat) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/scapegoat-scala/scapegoat)
[**wartremover**](https://github.com/wartremover/wartremover) | Flexible Scala code linting tool | ![GitHub stars](https://img.shields.io/github/stars/wartremover/wartremover) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/wartremover/wartremover)
[stone](https://github.com/sake92/stone) | URL (de)construct. Withers. | ![GitHub stars](https://img.shields.io/github/stars/sake92/stone) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sake92/stone)
[scalajs-router](https://github.com/sake92/scalajs-router) | ScalaJS frontend router | ![GitHub stars](https://img.shields.io/github/stars/sake92/scalajs-router) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/sake92/scalajs-router)
[scala2plantuml](https://github.com/BotTech/scala2plantuml) | Scala2PlantUML generates PlantUML diagrams from Scala code. | ![GitHub stars](https://img.shields.io/github/stars/BotTech/scala2plantuml) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/BotTech/scala2plantuml)

### Geospatial

*Libraries to aid with geospatial calculations and artifacts.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[**geotrellis**](https://github.com/locationtech/geotrellis) | GeoTrellis is a geographic data processing engine for high performance applications. | ![GitHub stars](https://img.shields.io/github/stars/locationtech/geotrellis) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/locationtech/geotrellis)
[osm4scala](https://github.com/simplexspatial/osm4scala) | Scala and Spark library focused on reading OpenStreetMap Pbf files. | ![GitHub stars](https://img.shields.io/github/stars/simplexspatial/osm4scala) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/simplexspatial/osm4scala)
[rtree2d](https://github.com/plokhotnyuk/rtree2d) | RTree2D is a 2D immutable R-tree for ultra-fast nearest and intersection queries in plane and spherical coordinates | ![GitHub stars](https://img.shields.io/github/stars/plokhotnyuk/rtree2d) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/plokhotnyuk/rtree2d)
[sfcurve](https://github.com/locationtech/sfcurve) | LocationTech SFCurve is a Scala library for the creation, transformation, and querying of space-filling curves  | ![GitHub stars](https://img.shields.io/github/stars/locationtech/sfcurve) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/locationtech/sfcurve)
[stac4s](https://github.com/azavea/stac4s) | a scala library with primitives to build applications using the SpatioTemporal Asset Catalogs specification | ![GitHub stars](https://img.shields.io/github/stars/azavea/stac4s) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/azavea/stac4s)
[franklin](https://github.com/azavea/franklin) | A STAC/OGC API Features Web Service | ![GitHub stars](https://img.shields.io/github/stars/azavea/franklin) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/azavea/franklin)

### Devops

*DevOps related tools and libraries.*

Name | Description | GitHub Activity
---- | ----------- | ---------------
[skuber](https://github.com/hagay3/skuber) | A Scala Kubernetes client library | ![GitHub stars](https://img.shields.io/github/stars/hagay3/skuber) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/hagay3/skuber)

# Learning Scala

*Nice books, blogs and other resources to learn Scala*

## Books
* [Essential Scala](https://underscore.io/books/essential-scala/) by Noel Welsh and Dave Gurnell - Essential Scala is aimed at experienced developers who are encountering Scala for the first time.
* [Functional and Reactive Domain Modeling](https://www.manning.com/books/functional-and-reactive-domain-modeling) by Debasish Ghosh
* [Functional Programming for Mortals](https://leanpub.com/fpmortals/read) by Sam Halliday
* [Functional Programming in Scala](https://www.manning.com/books/functional-programming-in-scala) by Paul Chiusano and Runar Bjarnason
* [Functional Programming, Simplified (Scala edition)](https://alvinalexander.com/scala/fp-book/learning-functional-programming-in-scala/) by Alvin Alexander
* [Get Programming with Scala](https://www.manning.com/books/get-programming-with-scala) by Daniela Sfregola - Tutorial-driven introduction to Scala
* [Practical FP in Scala: A hands-on approach](https://leanpub.com/pfp-scala) by Gabriel Volpe
* [Programming in Scala](https://www.artima.com/shop/programming_in_scala_4ed) by Martin Odersky, Lex Spoon, and Bill Venners
* [Pure functional HTTP APIs in Scala](https://leanpub.com/pfhais) by Jens Grassel
* [Reactive Programming with Scala and Akka](https://www.amazon.com/Reactive-Programming-Scala-Akka/dp/1783984341) - Use the concepts of reactive programming to build distributed systems running on multiple nodes
* [Scala Cookbook](http://scalacookbook.com) by Alvin Alexander
* [Scala for the Impatient](https://horstmann.com/scala/) by Cay Horstmann - Covers most Scala features with short and easy to understand explainations.
* [Scala With Cats](https://underscore.io/books/scala-with-cats/) by Noel Welsh and Dave Gurnell - Learn system architecture and design using the techniques of modern functional programming with [Cats](https://typelevel.org/cats/)
* [The Type Astronaut's Guide to Shapeless](https://underscore.io/books/shapeless-guide/) by Dave Gurnell
* [Zionomicon](https://www.zionomicon.com) by John A. De Goes, Adam Fraser - Master the dark art of creating scalable, type-safe, concurrent apps with ZIO

## Exercises
* [S-99](http://aperiodic.net/phil/scala/s-99) - Ninety-Nine Scala Problems
* [Scala Exercises](http://scala-exercises.47deg.com/) - Brings the popular Scala Koans to the web. Offering hundreds of solvable exercises organized into 42 categories covering the basics of the Scala language.
* [Exercism - Scala Exercises](http://exercism.io/languages/scala/exercises) - Community-driven Scala exercises.
* [Learn-by-doing functional programming course on Scala](https://github.com/dehun/learn-fp/) - Covers type classes, functors, applicatives, monads, monad transformers, free monad

## Tutorials and courses
* [A Tour of Scala](http://docs.scala-lang.org/tour/tour-of-scala.html) - Bite-sized introductions to some of the core language concepts.
* [Functional Programming in Scala](https://www.coursera.org/specializations/scala) - Coursera Specialization (5 courses) created by  Martin Odersky et al. at the EPFL (Ecole polytechnique fédérale de Lausanne).
* Resources by [Dr. Mark Lewis](http://www.cs.trinity.edu/~mlewis/) >> [Website](http://www.programmingusingscala.net/) | [Youtube Playlists](https://www.youtube.com/user/DrMarkCLewis/playlists)
* **[Demos and Examples in Scala (Chinese) ★ 923 ⧗ 2](https://github.com/jacksu/utils4s)** - repo of sample Scala library usage, written in Chinese
* [Introduction to programming with dependent types in Scala](https://stepik.org/course/2294/) - Video Course by Dmytro Mitin
* [Scala Collections Cookbook](http://colobu.com/ScalaCollectionsCookbook/) - Scala collections introduction. written in Chinese.
* [Free Scala Courses](https://skillcombo.com/topic/scala/free/) - A curated list of free Scala courses.

## Commercial courses
* [Foundations of Functional Programming in Scala](https://www.fp-tower.com/courses/foundations) - a professional video course with exercises covering covers functional principles, custom IO (effects) and functional design.
* [Scala Algorithms](https://www.scala-algorithms.com/) - a collection of nearly 100 algorithms in pure-functional Scala with test cases, explanations and a web-based IDE. Built with http4s & Scala.js.

## Community Members' Blogs

* http://lihaoyi.com
* http://warski.org/blog
* https://degoes.net/articles
* http://eed3si9n.com/category/tags/scala
* https://danielwestheide.com/tags/scala
* https://kubuszok.com/tags/#scala
* http://debasishg.blogspot.com
* http://appliedscala.com/blog
* http://blog.higher-order.com
* http://ktoso.github.io/scala-types-of-types
* http://scalaprof.blogspot.com
* http://torre.me.uk/docs/scala
* https://alvinalexander.com
* https://blog.bruchez.name/search/label/scala
* https://github.com/lemastero/scala_typeclassopedia
* https://pchiusano.github.io
* https://beyondthelines.net
* https://manuel.bernhardt.io/blog

## Company Blogs
* [Functional Works / Learn](https://functional.works-hub.com/learn/) - Quality resources maintained by functional works
* http://allaboutscala.com/
* http://enear.github.io/
* https://blog.knoldus.com/tag/scala/
* https://blog.scalac.io/tags/Scala/
* https://blog.softwaremill.com/tagged/scala
* https://medium.com/disney-streaming/tagged/thisweekinscala
* https://www.codacy.com/blog/
* [Scala Times](https://scalatimes.com/) - Weekly newsletter about scala
* [47 Degrees](https://www.47deg.com/blog/) - Functional Programming news, updates, and more.

## Podcasts

* [The Scala Logs](https://twitter.com/thescalalogs) - Interviewing developers, open source contributors, subject matter experts, and the like to talk about FP, Scala, open source, and their interests.
* [Scala Love](https://scala.love/) - Podcast about the Scala Programming Language and its community
* [CoRecursive Interviews](https://corecursive.com/) - In-depth Interviews with software developers, often on the subject of scala libraries and functional programming.

## Communities

* [Scala Ukraine](https://t.me/scala_ukraine) - Telegram chat of Ukrainian Scala Community

## Misc.

* [Programming Community Curated Resources for Learning Scala](https://hackr.io/tutorials/learn-scala)
* [Scalera Blog](http://www.scalera.es) - Blog about Scala language and its environment (howto's, good practices, tips,...). Weekly posts written in both spanish and english
* [Scala @LibHunt](https://scala.libhunt.com) - A community driven list of useful Scala libraries, frameworks and software
* [List of Scala Online Courses](https://classpert.com/scala-programming) - A list of free and paid Scala online courses by Classpert, An online course search and comparison website
* [Scala Days Conferences](https://www.youtube.com/channel/UCOHg8YCiyMVRRxb3mJT_0Mg) -  A youtube channel that provides full fledged videos, recorded at Scala Days Conferences
* [CA Art](https://github.com/makingthematrix/ca_art) - A small project aimed at learning Scala on intermediate level by experimenting with Cellular Automata