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    108 repositories

    • otel4s

      Public
      An OpenTelemetry library for Scala based on Cats-Effect
      catsscalametricstypeleveltracingcats-effectopentelemetry
      Scala
      •
      Apache License 2.0
      •43•200•20•5•Updated Nov 3, 2025Nov 3, 2025

    • fs2-grpc

      Public
      gRPC implementation for FS2/cats-effect
      Scala
      •
      MIT License
      •62•280•9•3•Updated Nov 3, 2025Nov 3, 2025

    • feral

      Public
      Feral cats are homeless, feral functions are serverless
      Scala
      •
      Apache License 2.0
      •50•194•30•19•Updated Nov 3, 2025Nov 3, 2025

    • typelevel-nix

      Public
      Development tools for Typelevel projects
      scalanixscalajsflakesdevshell
      Nix
      •
      Apache License 2.0
      •10•123•3•3•Updated Nov 3, 2025Nov 3, 2025

    • frameless

      Public
      Expressive types for Spark.
      scalasparkfunctional-programmingtypelevelfp
      Scala
      •
      Apache License 2.0
      •138•890•37•13•Updated Nov 3, 2025Nov 3, 2025

    • cats-time

      Public
      Cats Instances for Java Time
      Scala
      •
      MIT License
      •20•91•1•1•Updated Nov 3, 2025Nov 3, 2025

    • doobie

      Public
      Functional JDBC layer for Scala.
      scaladatabasefunctional-programmingjdbctypelevelfp
      Scala
      •
      MIT License
      •372•2.2k•126•3•Updated Nov 2, 2025Nov 2, 2025

    • munit-cats-effect

      Public
      Integration library for MUnit & cats-effect
      Scala
      •
      Apache License 2.0
      •38•153•5•5•Updated Nov 2, 2025Nov 2, 2025

    • grackle

      Public
      Grackle: Functional GraphQL for the Typelevel stack
      Scala
      •
      Apache License 2.0
      •29•183•24•2•Updated Nov 1, 2025Nov 1, 2025

    • cats-mtl

      Public
      cats transformer type classes.
      catsfunctional-programmingmonadtypeclassestransformer-typeclasses
      Scala
      •
      Other
      •64•310•18•5•Updated Nov 1, 2025Nov 1, 2025

    • Laika

      Public
      Site and E-book Generator and Customizable Text Markup Transformer for sbt, Scala and Scala.js
      Scala
      •
      Apache License 2.0
      •51•444•8•14•Updated Oct 31, 2025Oct 31, 2025

    • natchez-http4s

      Public
      Glorious integration layer for Natchez and Http4s.
      Scala
      •
      MIT License
      •18•50•3•6•Updated Oct 31, 2025Oct 31, 2025

    • jawn

      Public
      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!
      catsscalatoolkitscala-cli
      Scala
      •
      Apache License 2.0
      •9•97•8•13•Updated Oct 31, 2025Oct 31, 2025

    • kittens

      Public
      Automatic type class derivation for Cats
      Scala
      •
      Apache License 2.0
      •66•545•7•1•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.
      scalasbttypelevelsbt-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

    • skunk

      Public
      A data access library for Scala + Postgres.
      catspostgresscaladatabasefunctional-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

    • 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
      catsscalastringcase-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