Awesome Lists with GitHub stars

Awesome Scala =============

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 . Other amazingly awesome lists can be found in the awesome-awesomeness list.

Also awesome is Scaladex, 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
• Projects
  • Android
  • Archive and Compression
  • Artificial Intelligence
  • Authentication
  • Authorization
  • Big Data
  • Command Line Interfaces
  • Cryptography
  • CSV
  • Data Binding and Validation
  • Database
  • DevOps
  • Distributed Systems
  • Extensions
  • Functional Reactive Programming
  • Geospatial
  • Graphical User Interfaces
  • HTTP
  • i18n
  • Image processing and image analysis
  • JavaScript
  • JSON
  • Markdown
  • Metrics and Monitoring
  • Misc
  • Modularization and Dependency Injection
  • Parsing
  • Reactive Web Frameworks
  • Sbt plugins
  • Science and Data Analysis
  • Scheduling
  • Semantic Web
  • Serialization
  • Templating
  • Testing
  • Tools
  • Web Frameworks
  • XML / HTML
  • YAML
• Learning Scala
  • Books
  • Exercises
  • Tutorials and courses
  • Commercial courses
  • Community members’ blogs
  • Company Blogs
  • Podcasts
• Contributing

Archive and Compression

Name	Description	GitHub Activity
SevenZ4S	SevenZip library for Scala, easy to use.

Artificial Intelligence

Name	Description	GitHub Activity
cilib	Typesafe, purely functional Computational Intelligence

Database

Database access libraries in Scala.

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

Messaging

Name	Description	GitHub Activity
op-rabbit	The Opinionated RabbitMQ Library for Scala and Akka

Graphical User Interfaces

Libraries for creation of graphical user interfaces

Name	Description	GitHub Activity
scalafx	ScalaFX simplifies creation of JavaFX-based user interfaces in Scala

Web Frameworks

Scala frameworks for web development.

Name	Description	GitHub Activity
analogweb-scala	Tiny High Performance HTTP Server for Scala
chaos	A lightweight framework for writing REST services in Scala.
cask	Cask: a Scala HTTP micro-framework
colossus	I/O and Microservice library for Scala
finatra	Fast, testable, Scala services built on TwitterServer and Finagle
framework	Lift Framework
peregrine	Async lightweight Scala web framework
playframework	Play Framework
pagelets	A module for the Play Framework to build highly modular applications
reactive	A simple FRP library and a web UI framework built on it
scalajs-react	Facebook’s React on Scala.JS
scalatra	Tiny Scala high-performance, async web framework, inspired by Sinatra
skinny-framework	:monorail: “Scala on Rails” - A full-stack web app framework for rapid development in Scala
unfiltered	A toolkit for servicing HTTP requests in Scala
xitrum	Async and clustered Scala web framework and HTTP(S) server
youi	Next generation user interface and application development in Scala and Scala.js for web, mobile, and desktop.

Reactive Web Frameworks

Scala libraries for Reactive Web development

Name	Description	GitHub Activity
Binding.scala	Reactive data-binding for Scala
korolev	Single Page Applications running on the server side.
udash-core	Scala framework for building beautiful and maintainable web applications.
vertx-lang-scala	Vert.x for Scala

Data Binding and Validation

Scala libraries for data binding and validation

Name	Description	GitHub Activity
accord	Accord: A sane validation library for Scala
dupin	Minimal, idiomatic, customizable validation Scala library.
octopus	Scala library for boilerplate-free validation
veto	If you don’t agree with the data
fields	Scala validation library

i18n

Scala libraries for i18n.

Name	Description	GitHub Activity
scala-xgettext	Scala compiler plugin that acts like GNU xgettext command to extract i18n strings in Scala source code files to Gettext .po file
scaposer	GNU Gettext .po file loader for Scala

Authentication

Libraries for implementing authentications schemes.

Name	Description	GitHub Activity
akka-http-session	Web & mobile client-side akka-http sessions, with optional JWT support
aws-request-signer	Scala library to sign HTTP requests to AWS services.
OAuth2-mock-play	An implementation of an OAuth2 server designed for mocking/testing
play-googleauth	Simple play module for authenticating against Google
play-pac4j	Security library for Play framework 2 in Java and Scala: OAuth, CAS, SAML, OpenID Connect, LDAP, JWT…
play2-auth	Play2.x Authentication and Authorization module
scala-oauth2-provider	OAuth 2.0 server-side implementation written in Scala
securesocial	A module that provides OAuth, OAuth2 and OpenID authentication for Play Framework applications

Cryptography

Cryptography and Encryption Libraries.

Name	Description	GitHub Activity
scrypto	Cryptographic primitives for Scala
tsec	Type-safe general-cryptography library - https://jmcardon.github.io/tsec/
jose	Extensible JOSE library for Scala

Testing

Libraries for code testing.

Name	Description	GitHub Activity
cornichon	Scala DSL for testing HTTP JSON API
gatling	Modern Load Testing as Code
minitest	The super light testing library for Scala and Scala.js
mockito-scala	Mockito for Scala language
munit	Scala testing library with actionable errors and extensible APIs
scalacheck	Property-based testing for Scala
scalameter	Microbenchmarking and performance regression testing framework for the JVM platform.
ScalaMock	Native Scala mocking framework
scalaprops	property based testing library for Scala
scalatest	A testing tool for Scala and Java developers
scalive	Connect a Scala REPL to running JVM processes without any prior setup
specs2	Software Specifications for Scala
stryker4s	Mutation testing for Scala
weaver-test	A test framework that runs everything in parallel.
testcontainers-scala	Docker containers for testing in scala
utest	A simple testing framework for Scala

JSON

Libraries for work with json.

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

YAML

Libraries for work with YAML.

Name	Description	GitHub Activity
moultingyaml	Scala wrapper for SnakeYAML

CSV

Libraries for work with CSV.

Name	Description	GitHub Activity
fm-flatfile	Scala Library for Reading Flat File Data (CSV/TSV/XLS/XLSX)
kantan.csv	CSV handling library for Scala
scala-csv	CSV Reader/Writer for Scala
spata	Functional, stream-based CSV processor for Scala

Serialization

Libraries for serializing and deserializing data for storage or transport.

Name	Description	GitHub Activity
avro-codegen	Scala code generator for Avro schemas.
borer	Efficient CBOR and JSON (de)serialization in Scala
avro4s	Avro schema generation and serialization / deserialization for Scala
chill	Scala extensions for the Kryo serialization library
msgpack-scala	MessagePack serializer implementation for Scala / msgpack.org[Scala]
ScalaPB	Protocol buffer compiler for Scala.
scodec	Scala combinator library for working with binary data
scrooge	A Thrift parser/generator
upickle	uPickle: a simple, fast, dependency-free JSON & Binary (MessagePack) serialization library for Scala
proto	Lightweight and fast serialization library for Scala 2/3 based on Protocol Buffers with macros

Science and Data Analysis

Libraries for scientific computing, data analysis and numerical processing.

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

Big Data

Name	Description	GitHub Activity
BIDMach	CPU and GPU-accelerated Machine Learning Library
flink	Apache Flink
gridscale	Scala library for accessing various file, batch systems, job schedulers and grid middlewares.
kafka	Mirror of Apache Kafka
alpakka-kafka	Alpakka Kafka connector - Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.
scalding	A Scala API for Cascading
schemer	Schema registry for CSV, TSV, JSON, AVRO and Parquet schema. Supports schema inference and GraphQL API.
scio	A Scala API for Apache Beam and Google Cloud Dataflow.
Scrunch	A Scala wrapper for Apache Crunch which provides a framework for writing, testing, and running MapReduce pipelines.
spark	Apache Spark - A unified analytics engine for large-scale data processing
sparkplug	Spark package to “plug” holes in data using SQL based rules ⚡️ 🔌
sparta	Real Time Analytics and Data Pipelines based on Spark Streaming
summingbird	Streaming MapReduce with Scalding and Storm
Vegas	The missing MatPlotLib for Scala + Spark
gallia-core	A schema-aware Scala library for data transformation

Command Line Interfaces

Libraries for creation of command line interfaces

Name	Description	GitHub Activity
clist	Command Line Interface Scala Toolkit
decline	A composable command-line parser for Scala.
mainargs	A small, convenient, dependency-free library for command-line argument parsing in Scala
scallop	a simple Scala CLI parsing library
scopt	command line options parsing for Scala

Image processing and image analysis

2D and 3D image processing and image analysis

Name	Description	GitHub Activity
scala-phash	Image comparison by hash codes
scalismo	Scalable Image Analysis and Shape Modelling
scrimage	Java, Scala and Kotlin image processing library

Sound processing and music

Name	Description	GitHub Activity
Chromaprint.scala	Chromaprint/AcoustID audio fingerprinting for the JVM
ScalaCollider	A Scala sound synthesis library based on SuperCollider.

Functional Reactive Programming

Event streams, signals, observables, etc.

Name	Description	GitHub Activity
fs2	Compositional, streaming I/O library for Scala
iteratee	Iteratees for Cats
monix	Asynchronous, Reactive Programming for Scala and Scala.js.
reactors	A concurrent reactive programming framework.
reactor-scala-extensions	A scala extension for Project Reactor’s Flux and Mono
REScala	REScala - reactive programming in OO applications
RxScala	RxScala – Reactive Extensions for Scala – a library for composing asynchronous and event-based programs using observable sequences
scala.rx	An experimental library for Functional Reactive Programming in Scala
zio	ZIO — A type-safe, composable library for async and concurrent programming in Scala
SynapseGrid	SynapseGrid is a framework for constructing dynamic low latency data flow systems.
vertx-lang-scala	Vert.x for Scala
wire-signals	A small and effective event-handling library for Scala

Modularization and Dependency Injection

Modularization of applications, dependency injection, etc.

Name	Description	GitHub Activity
airframe	Essential Building Blocks for Scala
izumi	Productivity-oriented collection of lightweight fancy stuff for Scala toolchain
macwire	Lightweight and Nonintrusive Scala Dependency Injection Library
scala-guice	Scala extensions for Google Guice
scaldi	Lightweight Scala Dependency Injection Library
sclasner	Scala classpath scanner
subcut	Scala Uniquely Bound Classes Under Traits
jam	Incredibly simple DI Scala library.

Distributed Systems

Libraries and frameworks for writing distributed applications.

Name	Description	GitHub Activity
akka	Build highly concurrent, distributed, and resilient message-driven applications on the JVM
akka-tracing	A distributed tracing extension for Akka. Provides integration with Play framework, Spray and Akka HTTP.
annette	Platform to build distributed, scalable, enterprise-wide business applications
curiodb	Distributed NoSQL Database
finagle	A fault tolerant, protocol-agnostic RPC system
glokka	Library to register and lookup actors by names in an Akka cluster
lagom	Reactive Microservices for the JVM
parapet	A purely functional library to build distributed and event-driven systems
poppet	Minimal, type-safe RPC Scala library.
reactors	A foundational framework for distributed programming.

Extensions

Scala extensions.

Name	Description	GitHub Activity
Ammonite	Scala Scripting
better-files	Simple, safe and intuitive Scala I/O
blindsight	Blindsight is a Scala logging API with DSL based structured logging, fluent logging, semantic logging, flow logging, and context aware logging.
cassovary	Cassovary is a simple big graph processing library for the JVM
cats	Lightweight, modular, and extensible library for functional programming.
chimney	Scala library for boilerplate-free, type-safe data transformations
chronoscala	A JSR-310 port of nscala_time
Dsl.scala	A framework to create embedded Domain-Specific Languages in Scala
each	A macro library that converts native imperative syntax to scalaz’s monadic expressions
eff	Eff monad for cats - https://atnos-org.github.io/eff
enableIf.scala	A library that toggles Scala code at compile-time, like #if in C/C++
enumeratum	A type-safe, reflection-free, powerful enumeration implementation for Scala with exhaustive pattern match warnings and helpful integrations.
Freasy-Monad	Easy way to create Free Monad using Scala macros with first-class Intellij support.
freedsl	Practical effect composition library based on abstract wrapping type and the free monad
freestyle	A cohesive & pragmatic framework of FP centric Scala libraries
hamsters	A mini Scala utility library
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.
larray	Large off-heap arrays and mmap files for Scala and Java
log4s	High-performance SLF4J wrapper for Scala.
izumi	Productivity-oriented collection of lightweight fancy stuff for Scala toolchain
Monocle	Optics library for Scala
nscala-time	A new Scala wrapper for Joda Time based on scala-time
quicklens	Modify deeply nested case class fields
scala-records	Labeled records for Scala based on structural refinement types and macros.
refined	Refinement types for Scala
scala-async	An asynchronous programming facility for Scala
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.
scala-logging	Convenient and performant logging library for Scala wrapping SLF4J.
scalameta	Library to read, analyze, transform and generate Scala programs
Scalactic	Small library of utilities related to quality that helps keeping code clear and correct.
scalaz	Principled Functional Programming in Scala
scribe	The fastest logging library in the world. Built from scratch in Scala and programmatically configurable.
shapeless	Generic programming for Scala
simulacrum	First class syntax support for type classes in Scala
squid	Squid – type-safe metaprogramming and compilation framework for Scala
tinylog	tinylog is a lightweight logging framework for Java, Kotlin, Scala, and Android
util	Wonderful reusable code from Twitter

Misc

Projects that don’t fit into any specific category.

Name	Description	GitHub Activity
Agora	Library of vote-counting algorithms for elections.
Ammonite	Scala Scripting
aws4s	Non-blocking AWS SDK for Scala exposing strongly-typed APIs built on top of http4s, fs2 and cats
bootzooka	Simple project to quickly start developing a Scala-based microservice or web application, without the need to write login, user registration etc.
eclair	A scala implementation of the Lightning Network.
fansi	Scala/Scala.js library for manipulating Fancy Ansi colored strings
figlet4s	ASCII-art banners in Scala
fs2-aws	fs2 utilities to interact with AWS
google4s	A lean, functional library for Google Cloud Services in Scala
google-api-scala	This API is a wrapper for the google java libraries. Currently mapping Admin Directory, Drive, and Calendar.
mailgun4s	Mailgun API implementation in Scala
managerial	A zero-dependency Scala library for managing resources monadically
media4s	Scala command-line wrapper around ffmpeg, ffprobe, ImageMagick, and other tools relating to media.
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:
ostinato	A chess library that runs on the server (Scala) and on the browser (ScalaJS).
play-swagger	Swagger spec generator for play framework
PPrint	Pretty-printing value, types and type-signatures in Scala
pureconfig	A boilerplate-free library for loading configuration files
REPLesent	A neat little tool to build presentations using the Scala REPL
scala-ssh	Remote shell access via SSH for your Scala applications
scala-stm	A library-based Software Transactional Memory (STM) for Scala, coupled with transactional sets and maps
Scavenger	An experimental automated theorem prover.
service-chassis	A scala chassis to get your applications and services bootstrapped quickly
spliff	Efficient diffing in Scala
scountries	Scala library that provides an enumeration of ISO 3166 codes for countries, along with their subdivisions.

Android

Scala libraries and wrappers for Android development.

Name	Description	GitHub Activity
sbt-android	An easy-to-use sbt plugin for working with all Android projects
scaloid	Scaloid makes your Android code easy to understand and maintain.

HTTP

Scala libraries and wrappers for HTTP clients.

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

Semantic Web

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

Name	Description	GitHub Activity
banana-rdf	Banana RDF
scowl	A Scala DSL for programming with the OWL API.

Metrics and Monitoring

Scala libraries for gathering metrics and monitoring applications.

Name	Description	GitHub Activity
metrics-scala	The scala API for Dropwizard’s Metrics.

Parsing

Scala libraries for creating parsers.

Name	Description	GitHub Activity
atto	friendly little parsers
fastparse	Writing Fast Parsers Fast in Scala
parboiled2	A macro-based PEG parser generator for Scala 2.10+
scala-parser-combinators	simple combinator-based parsing for Scala. formerly part of the Scala standard library, now a separate community-maintained module
cats-parse	A parsing library for the cats ecosystem
scallion	LL(1) parser combinators in Scala

Sbt plugins

Sbt plugins to make your life easier.

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

XML / HTML

XML and HTML generation and processing

Name	Description	GitHub Activity
scala-scraper	A Scala library for scraping content from HTML pages
xs4s	XML Streaming for Scala including FS2/cats support

Markdown

Name	Description	GitHub Activity
Laika	Text Markup Transformer for sbt and Scala applications, transforming Markdown and reStructuredText to HTML, EPUB and PDF

JavaScript

JavaScript generation and interop libraries.

Name	Description	GitHub Activity
scalafiddle-editor	Web user interface for ScalaFiddle
scala-js	Scala.js, the Scala to JavaScript compiler

Scheduling

Name	Description	GitHub Activity
akka-quartz-scheduler	Quartz Extension and utilities for cron-style scheduling in Akka

Templating

Web templating engines.

Name	Description	GitHub Activity
beard	A lightweight, logicless templating engine, written in Scala and inspired by Mustache
scalatags	ScalaTags is a small XML/HTML construction library for Scala.
scalate	Scalate is a Scala based template engine which supports HAML, Mustache and JSP, Erb and Velocity style syntaxes.
twirl	Twirl is Play’s default template engine
hepek	Typesafe HTML templates in pure Scala. Static site generator included! Play and ScalaJS support!

Tools

Name	Description	GitHub Activity
scala-trace-debug	Macro based print debugging. Locates log statements in your IDE.
bloop	Bloop is a build server and CLI tool to compile, test and run Scala fast from any editor or build tool.
codacy-scalameta	Codacy tool for Scalameta
coursier	Pure Scala Artifact Fetching
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.
fast-string-interpolator	Scala macro that generates ultra-fast string interpolators.
fastring	Extremely fast string formatting
gitbucket	A Git platform powered by Scala with easy installation, high extensibility & GitHub API compatibility
giter8	a command line tool to apply templates defined on GitHub
metals	Scala language server with rich IDE features 🚀
mill	Your shiny new Java/Scala build tool!
pos	Macro based print debugging. Locates debug statements in your IDE. Supports logging.
sbt	sbt, the interactive build tool
scalafix	Refactoring and linting tool for Scala
Scalafmt	Code formatter for Scala
scalariform	Scala source code formatter
scalastyle	scalastyle
Scalatex	Programmable, Typesafe Document Generation
scapegoat	Scala compiler plugin for static code analysis
wartremover	Flexible Scala code linting tool
stone	URL (de)construct. Withers.
scalajs-router	ScalaJS frontend router
scala2plantuml	Scala2PlantUML generates PlantUML diagrams from Scala code.

Geospatial

Libraries to aid with geospatial calculations and artifacts.

Name	Description	GitHub Activity
geotrellis	GeoTrellis is a geographic data processing engine for high performance applications.
osm4scala	Scala and Spark library focused on reading OpenStreetMap Pbf files.
rtree2d	RTree2D is a 2D immutable R-tree for ultra-fast nearest and intersection queries in plane and spherical coordinates
sfcurve	LocationTech SFCurve is a Scala library for the creation, transformation, and querying of space-filling curves
stac4s	a scala library with primitives to build applications using the SpatioTemporal Asset Catalogs specification
franklin	A STAC/OGC API Features Web Service

Devops

DevOps related tools and libraries.

Name	Description	GitHub Activity
skuber	A Scala Kubernetes client library

Learning Scala

Nice books, blogs and other resources to learn Scala

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 by Debasish Ghosh
• Functional Programming for Mortals by Sam Halliday
• Functional Programming in Scala by Paul Chiusano and Runar Bjarnason
• Functional Programming, Simplified (Scala edition) by Alvin Alexander
• Get Programming with Scala by Daniela Sfregola - Tutorial-driven introduction to Scala
• Practical FP in Scala: A hands-on approach by Gabriel Volpe
• Programming in Scala by Martin Odersky, Lex Spoon, and Bill Venners
• Pure functional HTTP APIs in Scala by Jens Grassel
• Reactive Programming with Scala and Akka - Use the concepts of reactive programming to build distributed systems running on multiple nodes
• Scala Cookbook by Alvin Alexander
• Scala for the Impatient by Cay Horstmann - Covers most Scala features with short and easy to understand explainations.
• Scala With Cats by Noel Welsh and Dave Gurnell - Learn system architecture and design using the techniques of modern functional programming with Cats
• The Type Astronaut’s Guide to Shapeless by Dave Gurnell
• Zionomicon by John A. De Goes, Adam Fraser - Master the dark art of creating scalable, type-safe, concurrent apps with ZIO

Exercises

• S-99 - Ninety-Nine Scala Problems
• Scala Exercises - 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 - Community-driven Scala exercises.
• Learn-by-doing functional programming course on Scala - Covers type classes, functors, applicatives, monads, monad transformers, free monad

Tutorials and courses

• A Tour of Scala - Bite-sized introductions to some of the core language concepts.
• Functional Programming in Scala - Coursera Specialization (5 courses) created by Martin Odersky et al. at the EPFL (Ecole polytechnique fédérale de Lausanne).

• Resources by Dr. Mark Lewis » Website

  Youtube Playlists

• Demos and Examples in Scala (Chinese) ★ 923 ⧗ 2 - repo of sample Scala library usage, written in Chinese
• Introduction to programming with dependent types in Scala - Video Course by Dmytro Mitin
• Scala Collections Cookbook - Scala collections introduction. written in Chinese.
• Free Scala Courses - A curated list of free Scala courses.

Commercial courses

• Foundations of Functional Programming in Scala - a professional video course with exercises covering covers functional principles, custom IO (effects) and functional design.
• Scala Algorithms - 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 - 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 - Weekly newsletter about scala
• 47 Degrees - Functional Programming news, updates, and more.

Podcasts

• The Scala Logs - Interviewing developers, open source contributors, subject matter experts, and the like to talk about FP, Scala, open source, and their interests.
• Scala Love - Podcast about the Scala Programming Language and its community
• CoRecursive Interviews - In-depth Interviews with software developers, often on the subject of scala libraries and functional programming.

Communities

• Scala Ukraine - Telegram chat of Ukrainian Scala Community

Misc.

• Programming Community Curated Resources for Learning Scala
• Scalera Blog - Blog about Scala language and its environment (howto’s, good practices, tips,…). Weekly posts written in both spanish and english
• Scala @LibHunt - A community driven list of useful Scala libraries, frameworks and software
• List of Scala Online Courses - A list of free and paid Scala online courses by Classpert, An online course search and comparison website
• Scala Days Conferences - A youtube channel that provides full fledged videos, recorded at Scala Days Conferences
• CA Art - A small project aimed at learning Scala on intermediate level by experimenting with Cellular Automata