Repositories list

• sbt-tpolecat

  Public
  scalac options for the enlightened

  scalasbtsbt-plugin+ 1

  scalasbtsbt-plugincompiler-options

  Scala

  •

  Apache License 2.0

  •5656 forks•408408 stars•1212 issues•44 pull requests•Updated May 5, 2026May 5, 2026

• fs2-kafka

  Public

  typelevel/fs2-kafka’s past year of commit activity
  Functional Kafka Streams for Scala

  streamingscalafs2+ 1

  streamingscalafs2kafka-client

  Scala

  •

  Apache License 2.0

  •108108 forks•309309 stars•00 issues•00 pull requests•Updated May 5, 2026May 5, 2026

• fs2-netty

  Public

  typelevel/fs2-netty’s past year of commit activity
  What it says on the tin!

  Scala

  •

  Apache License 2.0

  •1313 forks•4747 stars•33 issues•2323 pull requests•Updated May 5, 2026May 5, 2026

• GatOS

  Public
  Scala

  •

  Apache License 2.0

  •11 fork•22 stars•22 issues•22 pull requests•Updated May 5, 2026May 5, 2026

• typelevel.g8

  Public
  A typelevel.g8 based on sbt-typelevel

  scalasbtgiter8

  scalasbtgiter8

  Scala

  •66 forks•1414 stars•88 issues•00 pull requests•Updated May 4, 2026May 4, 2026

• doobie

  Public
  Functional JDBC layer for Scala.

  scaladatabasefunctional-programming+ 3

  scaladatabasefunctional-programmingjdbctypelevelfp

  Scala

  •

  MIT License

  •376376 forks•2.2k2.2k stars•127127 issues•88 pull requests•Updated May 4, 2026May 4, 2026

• scalacheck-xml

  Public
  Scalacheck instances for scala-xml

  Scala

  •11 fork•55 stars•00 issues•11 pull request•Updated May 4, 2026May 4, 2026

• case-insensitive

  Public
  A case-insensitive string for Scala

  catsscalastring+ 1

  catsscalastringcase-insensitive

  Scala

  •

  Apache License 2.0

  •1515 forks•3838 stars•55 issues•22 pull requests•Updated May 4, 2026May 4, 2026

• jawn-fs2

  Public
  Integration between jawn and fs2

  Scala

  •

  Other

  •1818 forks•3939 stars•11 issue•22 pull requests•Updated May 4, 2026May 4, 2026

• fs2

  Public

  typelevel/fs2’s past year of commit activity
  Compositional, streaming I/O library for Scala

  scalastreamfunctional-programming+ 2

  scalastreamfunctional-programmingfpstreaming-computation

  Scala

  •

  Other

  •629629 forks•2.4k2.4k stars•105105 issues•3838 pull requests•Updated May 4, 2026May 4, 2026

• vulcan

  Public
  Functional Avro for Scala

  scalaavro

  scalaavro

  Scala

  •

  Apache License 2.0

  •3535 forks•104104 stars•00 issues•00 pull requests•Updated May 4, 2026May 4, 2026

• cats-effect

  Public
  The pure asynchronous runtime for Scala

  scalaasynchronouseffects+ 2

  scalaasynchronouseffectsfptypeclasses

  Scala

  •

  Apache License 2.0

  •572572 forks•2.2k2.2k stars•198198 issues•2525 pull requests•Updated May 4, 2026May 4, 2026

• grackle

  Public
  Grackle: Functional GraphQL for the Typelevel stack

  Scala

  •

  Apache License 2.0

  •3131 forks•187187 stars•2323 issues•44 pull requests•Updated May 3, 2026May 3, 2026

• cats

  Public
  Lightweight, modular, and extensible library for functional programming.

  Scala

  •

  Other

  •1.2k1.2k forks•5.4k5.4k stars•223223 issues•4747 pull requests•Updated May 3, 2026May 3, 2026

• shapeless-3

  Public
  Generic programming for Scala

  Scala

  •2525 forks•201201 stars•55 issues•11 pull request•Updated May 3, 2026May 3, 2026

• discipline-specs2

  Public
  Specs2 Integration for Discipline

  Scala

  •

  MIT License

  •1111 forks•99 stars•00 issues•00 pull requests•Updated May 3, 2026May 3, 2026

• discipline

  Public
  Flexible law checking for Scala

  scalatypelevelproperty-based-testing

  scalatypelevelproperty-based-testing

  Scala

  •

  MIT License

  •6060 forks•336336 stars•55 issues•00 pull requests•Updated May 3, 2026May 3, 2026

• vault

  Public
  Type-safe, persistent storage for values of arbitrary types

  Scala

  •

  MIT License

  •2020 forks•8484 stars•11 issue•00 pull requests•Updated May 3, 2026May 3, 2026

• munit-cats-effect

  Public
  Integration library for MUnit & cats-effect

  Scala

  •

  Apache License 2.0

  •3838 forks•157157 stars•44 issues•22 pull requests•Updated May 3, 2026May 3, 2026

• mouse

  Public
  A small companion to cats

  catsscalatypelevel

  catsscalatypelevel

  Scala

  •

  MIT License

  •6666 forks•376376 stars•44 issues•33 pull requests•Updated May 3, 2026May 3, 2026

• monoids

  Public
  Generic Monoids for Scala

  Scala

  •

  MIT License

  •1313 forks•5252 stars•11 issue•55 pull requests•Updated May 3, 2026May 3, 2026

• log4cats

  Public
  Logging Tools For Interaction with cats-effect

  Scala

  •

  Apache License 2.0

  •7979 forks•415415 stars•1313 issues•1313 pull requests•Updated May 3, 2026May 3, 2026

• keypool

  Public
  A Keyed Pool Implementation for Scala

  Scala

  •

  MIT License

  •1616 forks•3939 stars•88 issues•66 pull requests•Updated May 3, 2026May 3, 2026

• cats-mtl

  Public
  cats transformer type classes.

  catsfunctional-programmingmonad+ 2

  catsfunctional-programmingmonadtypeclassestransformer-typeclasses

  Scala

  •

  Other

  •6666 forks•308308 stars•2121 issues•44 pull requests•Updated May 3, 2026May 3, 2026

• scalac-options

  Public
  A library for configuring scalac options

  Scala

  •

  Apache License 2.0

  •1818 forks•4848 stars•66 issues•77 pull requests•Updated May 2, 2026May 2, 2026

• scalacheck-effect

  Public
  Effectful property testing built on ScalaCheck

  Scala

  •

  Apache License 2.0

  •2525 forks•8282 stars•66 issues•22 pull requests•Updated May 2, 2026May 2, 2026

• scalacheck

  Public
  Property-based testing for Scala

  scalascalacheckproperty-testing

  scalascalacheckproperty-testing

  Scala

  •

  BSD 3-Clause "New" or "Revised" License

  •395395 forks•2k2k stars•5454 issues•1111 pull requests•Updated May 2, 2026May 2, 2026

• scalac-compat

  Public
  Lightweight tools for tackling Scalac version incompatibilities

  Scala

  •

  Apache License 2.0

  •44 forks•99 stars•00 issues•11 pull request•Updated May 2, 2026May 2, 2026

• discipline-scalatest

  Public
  ScalaTest binding for Discipline

  Scala

  •

  MIT License

  •1717 forks•2020 stars•11 issue•22 pull requests•Updated May 2, 2026May 2, 2026

• discipline-munit

  Public
  MUnit binding for Typelevel Discipline

  Scala

  •1616 forks•2525 stars•11 issue•11 pull request•Updated May 2, 2026May 2, 2026