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typelevel.scala

Let the Scala compiler work for you.

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 5.3k 1.2k

  2. fs2 fs2 Public

    Compositional, streaming I/O library for Scala

    Scala 2.4k 608

  3. scalacheck scalacheck Public

    Property-based testing for Scala

    Scala 1.9k 406

  4. spire spire Public

    Powerful new number types and numeric abstractions for Scala.

    Scala 1.8k 243

  5. cats-effect cats-effect Public

    The pure asynchronous runtime for Scala

    Scala 2.1k 535

  6. discipline discipline Public

    Flexible law checking for Scala

    Scala 332 56

Repositories

Showing 10 of 106 repositories
  • otel4s Public

    An OpenTelemetry library for Scala based on Cats-Effect

    typelevel/otel4s’s past year of commit activity
    Scala 182 Apache-2.0 40 15 (2 issues need help) 3 Updated Feb 27, 2025
  • cats-parse Public

    A parsing library for the cats ecosystem

    typelevel/cats-parse’s past year of commit activity
    Scala 239 MIT 54 18 10 Updated Feb 27, 2025
  • cats-effect Public

    The pure asynchronous runtime for Scala

    typelevel/cats-effect’s past year of commit activity
    Scala 2,080 Apache-2.0 535 163 (8 issues need help) 29 Updated Feb 27, 2025
  • typelevel.github.com Public

    Web site of typelevel.scala

    typelevel/typelevel.github.com’s past year of commit activity
    HTML 40 102 28 4 Updated Feb 26, 2025
  • cats-collections Public

    Data structures for pure functional programming in Scala

    typelevel/cats-collections’s past year of commit activity
    Scala 560 99 14 (1 issue needs help) 2 Updated Feb 26, 2025
  • shapeless-3 Public

    Generic programming for Scala

    typelevel/shapeless-3’s past year of commit activity
    Scala 195 24 6 1 Updated Feb 26, 2025
  • scalacheck Public

    Property-based testing for Scala

    typelevel/scalacheck’s past year of commit activity
    Scala 1,946 BSD-3-Clause 406 55 (1 issue needs help) 12 Updated Feb 26, 2025
  • jawn Public

    Jawn is for parsing jay-sawn (JSON)

    typelevel/jawn’s past year of commit activity
    Scala 433 74 12 2 Updated Feb 26, 2025
  • kittens Public

    Automatic type class derivation for Cats

    typelevel/kittens’s past year of commit activity
    Scala 539 Apache-2.0 67 8 0 Updated Feb 26, 2025
  • weaver-test Public

    A test framework that runs everything in parallel.

    typelevel/weaver-test’s past year of commit activity
    Scala 49 8 26 18 Updated Feb 26, 2025