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@typelevel

typelevel.scala

Let the Scala compiler work for you.
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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 621

  3. scalacheck scalacheck Public

    Property-based testing for Scala

    Scala 2k 403

  4. spire spire Public

    Powerful new number types and numeric abstractions for Scala.

    Scala 1.8k 241

  5. cats-effect cats-effect Public

    The pure asynchronous runtime for Scala

    Scala 2.2k 560

  6. discipline discipline Public

    Flexible law checking for Scala

    Scala 335 58

Repositories

Showing 10 of 108 repositories
  • paiges Public

    an implementation of Wadler's a prettier printer

    typelevel/paiges’s past year of commit activity
    Scala 188 Apache-2.0 30 5 9 Updated Oct 21, 2025
  • scalacheck-xml Public

    Scalacheck instances for scala-xml

    typelevel/scalacheck-xml’s past year of commit activity
    Scala 4 1 0 2 Updated Oct 21, 2025
  • jawn Public

    Jawn is for parsing jay-sawn (JSON)

    typelevel/jawn’s past year of commit activity
    Scala 434 73 12 3 Updated Oct 21, 2025
  • discipline-specs2 Public

    Specs2 Integration for Discipline

    typelevel/discipline-specs2’s past year of commit activity
    Scala 9 MIT 11 0 2 Updated Oct 21, 2025
  • case-insensitive Public

    A case-insensitive string for Scala

    typelevel/case-insensitive’s past year of commit activity
    Scala 39 Apache-2.0 15 4 4 Updated Oct 21, 2025
  • cats-collections Public

    Data structures for pure functional programming in Scala

    typelevel/cats-collections’s past year of commit activity
    Scala 561 103 14 (1 issue needs help) 4 Updated Oct 21, 2025
  • otel4s Public

    An OpenTelemetry library for Scala based on Cats-Effect

    typelevel/otel4s’s past year of commit activity
    Scala 198 Apache-2.0 43 19 (2 issues need help) 7 Updated Oct 21, 2025
  • log4cats-natchez Public

    log4cats backend that provides a Logger[F] given a Trace[F] from Natchez

    typelevel/log4cats-natchez’s past year of commit activity
    Scala 1 Apache-2.0 2 0 1 Updated Oct 21, 2025
  • skunk Public

    A data access library for Scala + Postgres.

    typelevel/skunk’s past year of commit activity
    Scala 1,628 MIT 165 78 (2 issues need help) 19 Updated Oct 21, 2025
  • grackle Public

    Grackle: Functional GraphQL for the Typelevel stack

    typelevel/grackle’s past year of commit activity
    Scala 183 Apache-2.0 29 24 (1 issue needs help) 5 Updated Oct 21, 2025
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