Repositories list

• munit-cats-effect

  Public

  typelevel/munit-cats-effect’s past year of commit activity
  Integration library for MUnit & cats-effect

  Scala

  •

  Apache License 2.0

  •38•153•5•5•Updated Nov 1, 2025Nov 1, 2025

• cats-mtl

  Public

  typelevel/cats-mtl’s past year of commit activity
  cats transformer type classes.

  catsfunctional-programmingmonad+ 2typeclassestransformer-typeclasses

  Scala

  •

  Other

  •64•310•18•5•Updated Nov 1, 2025Nov 1, 2025

• Laika

  Public

  typelevel/Laika’s past year of commit activity
  Site and E-book Generator and Customizable Text Markup Transformer for sbt, Scala and Scala.js

  Scala

  •

  Apache License 2.0

  •51•443•8•14•Updated Oct 31, 2025Oct 31, 2025

• feral

  Public

  typelevel/feral’s past year of commit activity
  Feral cats are homeless, feral functions are serverless

  Scala

  •

  Apache License 2.0

  •50•193•30•18•Updated Oct 31, 2025Oct 31, 2025

• fs2-grpc

  Public
  gRPC implementation for FS2/cats-effect

  Scala

  •

  MIT License

  •62•280•9•4•Updated Oct 31, 2025Oct 31, 2025

• natchez-http4s

  Public

  typelevel/natchez-http4s’s past year of commit activity
  Glorious integration layer for Natchez and Http4s.

  Scala

  •

  MIT License

  •18•50•3•6•Updated Oct 31, 2025Oct 31, 2025

• jawn

  Public

  typelevel/jawn’s past year of commit activity
  Jawn is for parsing jay-sawn (JSON)

  jsonscala

  Scala

  •73•435•12•2•Updated Oct 31, 2025Oct 31, 2025

• typelevel-scalafix

  Public
  Scalafix rules for Typelevel projects

  Scala

  •

  Apache License 2.0

  •8•26•17•9•Updated Oct 31, 2025Oct 31, 2025

• toolkit

  Public
  Quickstart your next app with the Typelevel Toolkit!

  catsscalatoolkit+ 1scala-cli

  Scala

  •

  Apache License 2.0

  •9•97•8•13•Updated Oct 31, 2025Oct 31, 2025

• otel4s

  Public
  An OpenTelemetry library for Scala based on Cats-Effect

  catsscalametrics+ 4typeleveltracingcats-effectopentelemetry

  Scala

  •

  Apache License 2.0

  •43•200•19•7•Updated Oct 31, 2025Oct 31, 2025

• kittens

  Public

  typelevel/kittens’s past year of commit activity
  Automatic type class derivation for Cats

  Scala

  •

  Apache License 2.0

  •66•545•7•1•Updated Oct 31, 2025Oct 31, 2025

• grackle

  Public
  Grackle: Functional GraphQL for the Typelevel stack

  Scala

  •

  Apache License 2.0

  •29•183•24•4•Updated Oct 31, 2025Oct 31, 2025

• shapeless-3

  Public
  Generic programming for Scala

  Scala

  •24•197•5•1•Updated Oct 30, 2025Oct 30, 2025

• weaver-test

  Public
  A test framework that runs everything in parallel.

  Scala

  •

  Other

  •14•72•26•14•Updated Oct 30, 2025Oct 30, 2025

• simulacrum-scalafix

  Public
  Simulacrum as Scalafix rules

  Scala

  •10•34•6•6•Updated Oct 30, 2025Oct 30, 2025

• sbt-typelevel

  Public
  Let sbt work for you.

  scalasbttypelevel+ 1sbt-plugin

  Scala

  •

  Apache License 2.0

  •51•184•60•17•Updated Oct 30, 2025Oct 30, 2025

• paiges

  Public
  an implementation of Wadler's a prettier printer

  scalalayoutpretty-print

  Scala

  •

  Apache License 2.0

  •30•188•5•10•Updated Oct 30, 2025Oct 30, 2025

• jdk-index

  Public
  A Jabba compatible index of JDK versions

  Scala

  •

  Apache License 2.0

  •6•18•2•9•Updated Oct 30, 2025Oct 30, 2025

• idna4s

  Public
  Cross-platform Scala implementation of Internationalized Domain Names in Applications

  Scala

  •

  MIT License

  •4•7•7•14•Updated Oct 30, 2025Oct 30, 2025

• frameless

  Public
  Expressive types for Spark.

  scalasparkfunctional-programming+ 2typelevelfp

  Scala

  •

  Apache License 2.0

  •138•890•37•15•Updated Oct 30, 2025Oct 30, 2025

• skunk

  Public
  A data access library for Scala + Postgres.

  catspostgresscala+ 6databasefunctional-programmingtypelevelfs2scodeccats-effect

  Scala

  •

  MIT License

  •165•1.6k•78•11•Updated Oct 29, 2025Oct 29, 2025

• keypool

  Public
  A Keyed Pool Implementation for Scala

  Scala

  •

  MIT License

  •15•39•8•6•Updated Oct 29, 2025Oct 29, 2025

• doobie

  Public
  Functional JDBC layer for Scala.

  scaladatabasefunctional-programming+ 3jdbctypelevelfp

  Scala

  •

  MIT License

  •372•2.2k•126•4•Updated Oct 29, 2025Oct 29, 2025

• mouse

  Public
  A small companion to cats

  catsscalatypelevel

  Scala

  •

  MIT License

  •65•375•4•3•Updated Oct 29, 2025Oct 29, 2025

• case-insensitive

  Public
  A case-insensitive string for Scala

  catsscalastring+ 1case-insensitive

  Scala

  •

  Apache License 2.0

  •15•39•4•4•Updated Oct 29, 2025Oct 29, 2025

• scalacheck-xml

  Public
  Scalacheck instances for scala-xml

  Scala

  •1•4•0•2•Updated Oct 29, 2025Oct 29, 2025

• kind-projector

  Public
  Compiler plugin for making type lambdas (type projections) easier to write

  Scala

  •

  MIT License

  •75•928•10•0•Updated Oct 28, 2025Oct 28, 2025

• jawn-fs2

  Public
  Integration between jawn and fs2

  Scala

  •

  Other

  •17•38•1•3•Updated Oct 28, 2025Oct 28, 2025

• cats-effect

  Public
  The pure asynchronous runtime for Scala

  scalaasynchronouseffects+ 2fptypeclasses

  Scala

  •

  Apache License 2.0

  •560•2.2k•195•49•Updated Oct 28, 2025Oct 28, 2025

• fs2

  Public
  Compositional, streaming I/O library for Scala

  scalastreamfunctional-programming+ 2fpstreaming-computation

  Scala

  •

  Other

  •621•2.4k•94•34•Updated Oct 28, 2025Oct 28, 2025