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The Scala Library Index

    • akka150
    • akka-http57
    • akka-streams55
    • apache-spark32
    • big-data30
    • cats141
    • cats-effect106
    • circe47
    • database50
    • dsl33
    • fp49
    • fs263
    • functional-programming183
    • hacktoberfest75
    • http45
    • http4s51
    • java149
    • jdbc30
    • json124
    • kafka55
    • library32
    • logging31
    • machine-learning39
    • macros50
    • metrics37
    • mongodb32
    • pekko30
    • play-framework58
    • playframework59
    • production53
    • reactive35
    • reactive-streams33
    • sbt256
    • sbt-plugin245
    • scala2039
    • scala-js63
    • scala-library35
    • scala-native50
    • scala356
    • scalajs155
    • scalaz41
    • shapeless40
    • spark174
    • sql46
    • streaming36
    • swagger32
    • testing57
    • tracing36
    • typelevel44
    • zio102

    Scala Versions

    Scala 3.x

    1679 projects

    Scala 2.13

    3060 projects

    Other versions: 2.12 2.11 2.10

    Platforms

    Scala.js 1.x

    808 projects

    Other versions: 0.6

    Scala Native 0.5

    198 projects

    Other versions: 0.4 0.3

    Build Tool Plugins

    sbt 2.x

    60 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

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    xuwei-k/coherence

    Find duplicate type class instances

    30 Apr 2026 at 04:16 (UTC)
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    guizmaii-opensource/csvzen

    CSV made fast and simple

    25 Apr 2026 at 09:14 (UTC)
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    indoorvivants/forge

    20 Apr 2026 at 11:05 (UTC)
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    xuwei-k/given-anonymous-name

    Find or remove Scala 3 unused given name

    16 Apr 2026 at 03:13 (UTC)
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    colofabrix/tado4s

    Functional, type-safe client for the Tado API

    13 Apr 2026 at 23:34 (UTC)
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    colofabrix/timeflux

    A functional, type-safe client for InfluxDB

    13 Apr 2026 at 23:32 (UTC)
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    guizmaii-opensource/jrubyconcurrentconstantmemoryexcel

    Helper to write Excel files as fast as possible with a constant RAM use in JRuby programs

    13 Apr 2026 at 12:19 (UTC)
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    xuwei-k/scala-version-from-sbt-version

    10 Apr 2026 at 09:30 (UTC)
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    indoorvivants/merkle

    Diffable and serialisable Merkle tree

    06 Apr 2026 at 23:24 (UTC)
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    jamesward/zio-http-mcp

    05 Apr 2026 at 10:11 (UTC)
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    indoorvivants/sn-sizemap

    Break down the size of a Scala Native binary

    02 Apr 2026 at 14:50 (UTC)
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    alexdupre/thumbhash4s

    A scala3 library to create and parse ThumbHash image placeholders.

    12 Mar 2026 at 18:18 (UTC)
    More ...

    Most depended-upon Projects

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    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)
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    scalatest/scalatest

    A testing tool for Scala and Java developers

    22 Dec 2012 at 03:43 (UTC)
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    scala/scala3

    The Scala 3 compiler, also known as Dotty.

    09 Jun 2016 at 13:04 (UTC)
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    scala-js/scala-js

    Scala.js, the Scala to JavaScript compiler

    14 Jan 2014 at 19:54 (UTC)
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    typelevel/scalacheck

    Property-based testing for Scala

    07 Apr 2013 at 13:37 (UTC)
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    typelevel/cats

    Lightweight, modular, and extensible library for functional programming.

    05 Feb 2016 at 06:15 (UTC)
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    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)
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    etorreborre/specs2

    Software Specifications for Scala

    13 Jun 2012 at 22:50 (UTC)
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    circe/circe

    Yet another JSON library for Scala

    10 Aug 2015 at 02:04 (UTC)
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    typelevel/cats-effect

    The pure asynchronous runtime for Scala

    21 Apr 2017 at 23:00 (UTC)
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    lightbend/config

    configuration library for JVM languages using HOCON files

    13 Apr 2012 at 03:51 (UTC)
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    apache/spark

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

    20 Jan 1970 at 15:37 (UTC)
    More ...
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