Repositories list

• http4s

  Public
  A minimal, idiomatic Scala interface for HTTP

  catshttpscala+ 4

  catshttpscalatypelevelfs2http-clienthttp-server

  Scala

  •

  Apache License 2.0

  •819819 forks•2.6k2.6k stars•265265 issues•106106 pull requests•Updated Oct 9, 2026Oct 9, 2026

• http4s-netty

  Public
  Http4s on pure netty

  Scala

  •

  Apache License 2.0

  •2121 forks•4747 stars•88 issues•33 pull requests•Updated Oct 8, 2026Oct 8, 2026

• rho

  Public
  A self documenting DSL built on http4s

  Scala

  •

  Other

  •6363 forks•295295 stars•4242 issues•9090 pull requests•Updated Oct 8, 2026Oct 8, 2026

• http4s-twirl

  Public
  Twirl template support for http4s

  Scala

  •

  Apache License 2.0

  •55 forks•55 stars•00 issues•33 pull requests•Updated Oct 8, 2026Oct 8, 2026

• http4s-scala-xml

  Public
  http4s codecs for scala-xml

  Scala

  •

  Apache License 2.0

  •44 forks•55 stars•22 issues•66 pull requests•Updated Oct 8, 2026Oct 8, 2026

• http4s-prometheus-metrics

  Public
  Support for Prometheus Metrics

  Scala

  •1212 forks•1111 stars•66 issues•22 pull requests•Updated Oct 8, 2026Oct 8, 2026

• http4s-jdk-http-client

  Public
  JDK 11+ http client implementation for http4s clients

  Scala

  •

  Apache License 2.0

  •1919 forks•6060 stars•55 issues•88 pull requests•Updated Oct 8, 2026Oct 8, 2026

• http4s-fabric

  Public
  Fabric integration module for http4s

  Scala

  •

  MIT License

  •22 forks•44 stars•00 issues•33 pull requests•Updated Oct 8, 2026Oct 8, 2026

• http4s-armeria

  Public
  Armeria backend for http4s

  http4sarmeria

  http4sarmeria

  Scala

  •

  Apache License 2.0

  •1010 forks•6262 stars•55 issues•33 pull requests•Updated Oct 8, 2026Oct 8, 2026

• blaze

  Public
  Blazing fast NIO microframework and Http Parser

  Scala

  •

  Apache License 2.0

  •6363 forks•371371 stars•8181 issues•77 pull requests•Updated Oct 8, 2026Oct 8, 2026

• steward

  Public
  Runs Scala Steward for the http4s organization

  44 forks•00 stars•00 issues•11 pull request•Updated Oct 8, 2026Oct 8, 2026

• http4s.g8

  Public
  giter8 template for bootstrapping http4s services

  Scala

  •

  Other

  •7272 forks•119119 stars•11 issue•11 pull request•Updated Oct 7, 2026Oct 7, 2026

• http4s-grpc

  Public
  Scala

  •

  MIT License

  •88 forks•4949 stars•00 issues•00 pull requests•Updated Oct 6, 2026Oct 6, 2026

• http4s-io.g8

  Public
  An alternate giter8 template fixed on IO

  Scala

  •

  Other

  •66 forks•88 stars•00 issues•1010 pull requests•Updated Oct 6, 2026Oct 6, 2026

• hpack

  Public
  Header Compression for HTTP/2

  Scala

  •

  Apache License 2.0

  •33 forks•22 stars•00 issues•2525 pull requests•Updated Oct 6, 2026Oct 6, 2026

• http4s-curl

  Public
  curling isn't just for Canadians

  catscurlhttp4s+ 1

  catscurlhttp4sscala-native

  Scala

  •

  Apache License 2.0

  •1111 forks•3535 stars•77 issues•2525 pull requests•Updated Oct 6, 2026Oct 6, 2026

• http4s-servlet

  Public
  http4s-servlet support

  scalatypelevelhttp4s+ 1

  scalatypelevelhttp4sservlet

  Scala

  •

  Apache License 2.0

  •66 forks•66 stars•1212 issues•1515 pull requests•Updated Oct 5, 2026Oct 5, 2026

• http4s-jetty

  Public
  Jetty backend for http4s servers

  Scala

  •

  Apache License 2.0

  •77 forks•55 stars•88 issues•2323 pull requests•Updated Oct 5, 2026Oct 5, 2026

• http4s-boopickle

  Public
  Boopickle codecs for http4s

  Scala

  •

  Apache License 2.0

  •22 forks•11 star•00 issues•1616 pull requests•Updated Oct 5, 2026Oct 5, 2026

• http4s-session

  Public
  Http4s Session Convenience

  Scala

  •

  MIT License

  •44 forks•77 stars•44 issues•66 pull requests•Updated Oct 3, 2026Oct 3, 2026

• http4s-scalatags

  Public
  Scalatags template support for http4s

  Scala

  •

  Apache License 2.0

  •44 forks•1010 stars•00 issues•66 pull requests•Updated Sep 30, 2026Sep 30, 2026

• sbt-http4s-org

  Public
  An experimental SBT plugin to support various http4s projects

  Scala

  •

  Apache License 2.0

  •99 forks•99 stars•33 issues•11 pull request•Updated Sep 29, 2026Sep 29, 2026

• http4s-play-json

  Public
  Play JSON codecs for http4s

  Scala

  •

  Apache License 2.0

  •22 forks•33 stars•00 issues•44 pull requests•Updated Sep 29, 2026Sep 29, 2026

• http4s-otel4s-middleware

  Public
  http4s middlewares built on otel4s

  Scala

  •

  Apache License 2.0

  •1212 forks•2727 stars•22 issues•55 pull requests•Updated Sep 29, 2026Sep 29, 2026

• http4s-finagle

  Public
  Http4s on Finagle Server or Client

  http4sfinagle

  http4sfinagle

  Scala

  •

  Apache License 2.0

  •44 forks•1111 stars•22 issues•1515 pull requests•Updated Sep 29, 2026Sep 29, 2026

• http4s-dom

  Public
  http4s, in a browser near you

  catsfetchservice-worker+ 4

  catsfetchservice-workertypelevelhttp4shttp-clientscalajs

  Scala

  •

  Apache License 2.0

  •1111 forks•2828 stars•22 issues•1919 pull requests•Updated Sep 29, 2026Sep 29, 2026

• .github

  Public
  Defaults for community health files

  44 forks•00 stars•00 issues•00 pull requests•Updated Sep 29, 2026Sep 29, 2026

• http4s-crypto

  Public
  Incubator for cryptographic functions cross-built for the JVM and Scala.js.

  Scala

  •

  Apache License 2.0

  •44 forks•88 stars•00 issues•2525 pull requests•Updated Sep 19, 2026Sep 19, 2026

• http4s-tomcat

  Public
  Apache Tomcat backend for http4s

  Scala

  •

  Apache License 2.0

  •44 forks•33 stars•55 issues•3838 pull requests•Updated Sep 15, 2026Sep 15, 2026

• http4s-fs2-data

  Public
  http4s integration with fs2-data

  Scala

  •

  Apache License 2.0

  •88 forks•99 stars•33 issues•1010 pull requests•Updated Sep 4, 2026Sep 4, 2026