The Scala Library Index

Scala Versions

Scala 3.x

1722 projects

Scala 2.13

3060 projects

Other versions: 2.12 2.11 2.10

Platforms

Scala.js 1.x

819 projects

Other versions: 0.6

Scala Native 0.5

220 projects

Other versions: 0.4 0.3

Build Tool Plugins

sbt 2.x

66 projects

Other versions: 1.x 0.13 2.0.0-M4 2.0.0-M3 2.0.0-M2 2.0.0-M1

Mill 0.12

1 projects

Other versions: 0.11 0.10 0.9 0.7 0.6

Recent projects

cetic/oscar-cbls

oscar-cbls

21 May 2026 at 14:59 (UTC)

alexdupre/klaviyo4s

Scala 3 code generator for the Klaviyo API

20 May 2026 at 09:09 (UTC)

sake92/deder

Config based client-server JVM build tool

15 May 2026 at 10:50 (UTC)

rchillyard/gambit

A Scala 3 framework for game-playing tree search and reinforcement learning.

12 May 2026 at 23:53 (UTC)

clulab/nxmlreader

11 May 2026 at 03:27 (UTC)

swaldman/trivial-template

08 May 2026 at 00:38 (UTC)

evolution-gaming/sbt-kagi-plugin

Simple SBT dependency lock plugin

07 May 2026 at 11:03 (UTC)

etorreborre/registry-scala

Dependency injection library for Scala 3

04 May 2026 at 16:16 (UTC)

xuwei-k/coherence

Find duplicate type class instances

30 Apr 2026 at 04:16 (UTC)

outr/scantivy

Scala wrapper implementation around Rust's Tantivy

27 Apr 2026 at 00:11 (UTC)

guizmaii-opensource/csvzen

CSV made fast and simple

25 Apr 2026 at 09:14 (UTC)

outr/strider

A lightweight, embedded workflow engine for Scala 3 on the JVM

24 Apr 2026 at 22:16 (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)

typelevel/cats

Lightweight, modular, and extensible library for functional programming.

05 Feb 2016 at 06:15 (UTC)

akka/akka-core

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)

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)

apache/spark

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

20 Jan 1970 at 15:37 (UTC)

More ...