The Scala Library Index

    Scala Versions

    Scala 3.x

    2041 projects

    Scala 2.13

    3456 projects

    Other versions: 2.12 2.11 2.10

    Platforms

    Scala.js 1.x

    946 projects

    Other versions: 0.6

    Scala Native 0.5

    222 projects

    Other versions: 0.4 0.3

    Build Tool Plugins

    sbt 1.x

    703 projects

    Other versions: 0.13 2.0.0-M4 2.0.0-M3 2.0.0-M2 2.0.0-M1

    Mill 0.12

    5 projects

    Other versions: 0.11 0.10 0.9 0.7 0.6

    Recent projects

    Image for: Recent projects

    balmungsan/neotypes

    Scala lightweight, type-safe, asynchronous driver for neo4j

    08 Jun 2025 at 03:31 (UTC)

    rossabaker/sbt-typelevel

    sbt plugin for publishing semantically-versioned, binary-compatible artifacts to Maven/Sonatype from GitHub Actions

    30 May 2025 at 20:52 (UTC)

    nivox/fs2-backpressure-sensor

    Backpressure sensor implementation for fs2

    29 May 2025 at 20:13 (UTC)

    typelevel/weaver-test

    A test framework that runs everything in parallel.

    28 May 2025 at 00:08 (UTC)

    sideeffffect/scala-quartz

    27 May 2025 at 14:56 (UTC)

    sopranoworks/scredis-json

    Redis Json extension for scredis using circe

    26 May 2025 at 11:27 (UTC)

    swaldman/logadapter-scala

    A zero-ish overhead logging facade for Scala

    25 May 2025 at 22:29 (UTC)

    ancane/recon4s

    25 May 2025 at 19:38 (UTC)

    limansky/scala-test-it

    ScalaTest TestIt integration

    23 May 2025 at 17:02 (UTC)

    greenfossil/htmltags

    21 May 2025 at 11:10 (UTC)

    swaldman/sqlutil-scala

    21 May 2025 at 05:33 (UTC)

    stg-tud/bismuth

    Monorepo for replicated & dataflow language abstractions [@rmgk]

    19 May 2025 at 15:49 (UTC)
    More ...

    Most depended-upon Projects

    Image for: Most depended-upon Projects

    scala/scala

    Scala 2 compiler and standard library. Scala 2 bugs at https://github.com/scala/bug; Scala 3 at https://github.com/scala/scala3

    19 Jan 2012 at 19:48 (UTC)

    scalatest/scalatest

    A testing tool for Scala and Java developers

    22 Dec 2012 at 03:43 (UTC)

    scala/scala3

    The Scala 3 compiler, also known as Dotty.

    09 Jun 2016 at 13:04 (UTC)

    scala-js/scala-js

    Scala.js, the Scala to JavaScript compiler

    14 Jan 2014 at 19:54 (UTC)

    typelevel/cats

    Lightweight, modular, and extensible library for functional programming.

    05 Feb 2016 at 02:53 (UTC)

    typelevel/scalacheck

    Property-based testing for Scala

    07 Apr 2013 at 13:37 (UTC)

    akka/akka

    A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.

    22 Dec 2012 at 13:22 (UTC)

    circe/circe

    Yet another JSON library for Scala

    10 Aug 2015 at 02:04 (UTC)

    etorreborre/specs2

    Software Specifications for Scala

    13 Jun 2012 at 22:50 (UTC)

    typelevel/cats-effect

    The pure asynchronous runtime for Scala

    21 Apr 2017 at 23:00 (UTC)

    lightbend/config

    configuration library for JVM languages using HOCON files

    13 Apr 2012 at 03:51 (UTC)

    apache/spark

    Apache Spark - A unified analytics engine for large-scale data processing

    24 Jan 2014 at 07:19 (UTC)
    More ...