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@typelevel

Typelevel

We do functional programming together!
README.md

Typelevel is an ecosystem of projects and a community of people united to foster an inclusive, welcoming, and safe environment around functional programming in Scala. Also find us on...

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  1. cats cats Public

    Lightweight, modular, and extensible library for functional programming.

    Scala 5.4k 1.2k

  2. fs2 fs2 Public

    Compositional, streaming I/O library for Scala

    Scala 2.4k 625

  3. scalacheck scalacheck Public

    Property-based testing for Scala

    Scala 2k 397

  4. spire spire Public

    Powerful new number types and numeric abstractions for Scala.

    Scala 1.8k 239

  5. cats-effect cats-effect Public

    The pure asynchronous runtime for Scala

    Scala 2.2k 568

  6. discipline discipline Public

    Flexible law checking for Scala

    Scala 334 58

Repositories

Showing 10 of 111 repositories
  • scalac-options Public

    A library for configuring scalac options

    typelevel/scalac-options’s past year of commit activity
    Scala 47 Apache-2.0 15 6 4 Updated Feb 26, 2026
  • scalac-compat Public

    Lightweight tools for tackling Scalac version incompatibilities

    typelevel/scalac-compat’s past year of commit activity
    Scala 9 Apache-2.0 3 0 0 Updated Feb 26, 2026
  • sbt-typelevel Public

    Let sbt work for you.

    typelevel/sbt-typelevel’s past year of commit activity
    Scala 184 Apache-2.0 53 63 (15 issues need help) 18 Updated Feb 26, 2026
  • typelevel.github.com Public

    Web site of typelevel.scala

    typelevel/typelevel.github.com’s past year of commit activity
    Scala 41 108 25 3 Updated Feb 26, 2026
  • cats-parse Public

    A parsing library for the cats ecosystem

    typelevel/cats-parse’s past year of commit activity
    Scala 245 MIT 51 18 10 Updated Feb 26, 2026
  • otel4s-sdk Public

    Implementation of the otel4s SDK modules in Scala from scratch

    typelevel/otel4s-sdk’s past year of commit activity
    Scala 5 Apache-2.0 1 9 (3 issues need help) 4 Updated Feb 26, 2026
  • typelevel.g8 Public

    A typelevel.g8 based on sbt-typelevel

    typelevel/typelevel.g8’s past year of commit activity
    Scala 15 6 8 0 Updated Feb 26, 2026
  • kittens Public

    Automatic type class derivation for Cats

    typelevel/kittens’s past year of commit activity
    Scala 545 Apache-2.0 66 7 2 Updated Feb 26, 2026
  • twiddles Public

    Micro-library for building effectful protocols

    typelevel/twiddles’s past year of commit activity
    Scala 69 BSD-3-Clause 4 1 5 Updated Feb 26, 2026
  • toolkit Public

    Quickstart your next app with the Typelevel Toolkit!

    typelevel/toolkit’s past year of commit activity
    Scala 97 Apache-2.0 9 8 (1 issue needs help) 13 Updated Feb 26, 2026
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Sponsors

  • @vladimir-popov
  • @rtyley
  • @yoshinorin
  • @a-nigredo
  • @DavidGregory084
  • @lhns
  • @BalmungSan
  • @b-vennes
  • @lorandszakacs
  • @andrew-selvia
  • Private Sponsor