The Scala Library Index

Scala Versions

Scala 3.x

1590 projects

Scala 2.13

2999 projects

Other versions: 2.12 2.11 2.10

Platforms

Scala.js 1.x

790 projects

Other versions: 0.6

Scala Native 0.5

180 projects

Other versions: 0.4 0.3

Build Tool Plugins

sbt 1.x

600 projects

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

Mill 0.12

2 projects

Other versions: 0.11 0.10 0.9 0.7 0.6

Recent projects

xuwei-k/scalafix-rule-resource-gen

generate META-INF/services/scalafix.v1.Rule

03 Jul 2025 at 13:25 (UTC)

iltotore/mill-tailwind

Tailwind & DaisyUI plugin for Mill, without Node

15 Jun 2025 at 22:32 (UTC)

indoorvivants/sniper

Snippet manager with templates, Alfred integration, and MCP

14 Jun 2025 at 22:47 (UTC)

xuwei-k/sbt-root-aggregate

check aggragete all sub projects

14 Jun 2025 at 08:44 (UTC)

dripower/postgresql-async

12 Jun 2025 at 10:02 (UTC)

xuwei-k/scalafix-check

additional sbt-scalafix tasks

12 Jun 2025 at 02:26 (UTC)

nivox/cats-effect-treesync

09 Jun 2025 at 22:19 (UTC)

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)

More ...

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/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)

typelevel/cats

Lightweight, modular, and extensible library for functional programming.

05 Feb 2016 at 06:15 (UTC)

etorreborre/specs2

Software Specifications for Scala

13 Jun 2012 at 22:50 (UTC)

circe/circe

Yet another JSON library for Scala

10 Aug 2015 at 02:04 (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)

playframework/playframework

The Community Maintained High Velocity Web Framework For Java and Scala.

21 Aug 2014 at 04:52 (UTC)

More ...