Repositories list

• jruby-rack

  Public
  Rack for JRuby and Java appservers

  jrubydeploymentservlets+ 5

  jrubydeploymentservletstomcatrack-applicationwarblerrack-environmentjruby-rack

  Ruby

  •

  MIT License

  •139139 forks•405405 stars•88 issues•33 pull requests•Updated Aug 31, 2026Aug 31, 2026

• jruby

  Public
  JRuby, an implementation of Ruby on the JVM

  rubyperformancejruby+ 4

  rubyperformancejrubyjvmconcurrencyruby-languageinvokedynamic

  Ruby

  •

  Other

  •947947 forks•3.9k3.9k stars•845845 issues•112112 pull requests•Updated Aug 31, 2026Aug 31, 2026

• warbler

  Public
  Warbler chirpily constructs .war files of your Ruby applications.

  jrubypackagingtomcat+ 3

  jrubypackagingtomcatservletruby-on-railswar

  Ruby

  •

  MIT License

  •207207 forks•900900 stars•2424 issues•22 pull requests•Updated Aug 31, 2026Aug 31, 2026

• jruby-openssl

  Public
  JRuby's OpenSSL gem

  tlssslcryptography+ 3

  tlssslcryptographyjrubyopenssljruby-openssl

  Java

  •

  Other

  •8787 forks•4949 stars•1919 issues•33 pull requests•Updated Aug 28, 2026Aug 28, 2026

• jar-dependencies

  Public
  manage jar dependencies for ruby gems

  Ruby

  •

  MIT License

  •2222 forks•3535 stars•44 issues•22 pull requests•Updated Aug 24, 2026Aug 24, 2026

• activerecord-jdbc-adapter

  Public
  JRuby's ActiveRecord adapter using JDBC.

  railsactiverecordjruby+ 2

  railsactiverecordjrubyactiverecord-jdbc-adapterar-jdbc

  Ruby

  •

  BSD 2-Clause "Simplified" License

  •393393 forks•469469 stars•9494 issues•88 pull requests•Updated Aug 6, 2026Aug 6, 2026

• dd-trace-rb

  Public
  Datadog's client library for Ruby

  Ruby

  •

  Other

  •415415 forks•00 stars•00 issues•11 pull request•Updated Jul 31, 2026Jul 31, 2026

• docker-jruby

  Public
  Dockerfile

  •

  MIT License

  •2626 forks•1919 stars•33 issues•00 pull requests•Updated Jul 22, 2026Jul 22, 2026

• jruby.github.io

  Public
  The JRuby.org site

  HTML

  •1616 forks•00 stars•22 issues•55 pull requests•Updated Jul 22, 2026Jul 22, 2026

• jruby-prism

  Public
  Java parts of integrating the Prism parser into JRuby. Plugs in using an SPI

  Java

  •11 fork•22 stars•00 issues•00 pull requests•Updated Jul 21, 2026Jul 21, 2026

• jbang-catalog

  Public
  Catalog for jbang command line launcher

  00 forks•11 star•00 issues•00 pull requests•Updated Jun 11, 2026Jun 11, 2026

• rails_templates

  Public
  Templates for generating new Rails applications on JRuby

  Ruby

  •00 forks•00 stars•11 issue•00 pull requests•Updated May 29, 2026May 29, 2026

• jruby-prism-gem

  Public
  Prism Ruby parser

  C

  •

  MIT License

  •193193 forks•00 stars•00 issues•00 pull requests•Updated May 6, 2026May 6, 2026

• jay

  Public
  Jay grammar/parser tool

  C

  •22 forks•22 stars•00 issues•00 pull requests•Updated Apr 4, 2026Apr 4, 2026

• mavengem

  Public
  Mavengem protocol and mavengem wagon

  Ruby

  •

  Eclipse Public License 1.0

  •44 forks•33 stars•77 issues•33 pull requests•Updated Mar 30, 2026Mar 30, 2026

• jbundler

  Public
  bundler support for jars for jruby

  Ruby

  •

  MIT License

  •4141 forks•210210 stars•2323 issues•22 pull requests•Updated Mar 12, 2026Mar 12, 2026

• joni

  Public
  Java port of Oniguruma regexp library

  Java

  •

  MIT License

  •9191 forks•189189 stars•1313 issues•11 pull request•Updated Feb 25, 2026Feb 25, 2026

• jcodings

  Public
  Java-based codings helper classes for Joni and JRuby

  Java

  •

  MIT License

  •3030 forks•2525 stars•22 issues•00 pull requests•Updated Feb 19, 2026Feb 19, 2026

• maven-tools

  Public
  ruby helpers for maven related tasks

  Ruby

  •

  MIT License

  •1616 forks•1414 stars•55 issues•1616 pull requests•Updated Feb 4, 2026Feb 4, 2026

• jruby-launcher

  Public
  JRuby's native launcher executable

  C++

  •

  Other

  •1717 forks•2727 stars•1313 issues•22 pull requests•Updated Oct 23, 2025Oct 23, 2025

• jruby-jreleaser

  Public
  JReleaser configs for building other forms of JRuby distribution

  Other

  •00 forks•00 stars•00 issues•00 pull requests•Updated Aug 8, 2025Aug 8, 2025

• jruby-maven-plugins

  Public
  maven plugin to handle rubygems in a maven way. including support for rspec, rails, cucumber, rake, etc

  Java

  •

  MIT License

  •4646 forks•116116 stars•33 issues•33 pull requests•Updated Jun 25, 2025Jun 25, 2025

• blog.jruby.org

  Public
  This is the site and data for blog.jruby.org

  CSS

  •55 forks•66 stars•00 issues•00 pull requests•Updated Apr 9, 2025Apr 9, 2025

• ruby-maven

  Public
  Ruby

  •

  Eclipse Public License 2.0

  •44 forks•11 star•22 issues•00 pull requests•Updated Dec 10, 2024Dec 10, 2024

• ruby-maven-libs

  Public
  Ruby

  •

  Apache License 2.0

  •33 forks•00 stars•11 issue•11 pull request•Updated Sep 10, 2024Sep 10, 2024

• dirgra

  Public
  Simple Directed Graph Implementation

  Ruby

  •

  Eclipse Public License 1.0

  •11 fork•00 stars•00 issues•11 pull request•Updated Jul 25, 2024Jul 25, 2024

• nkf

  Public
  Ruby extension for Network Kanji Filter

  C

  •

  BSD 2-Clause "Simplified" License

  •1212 forks•00 stars•00 issues•00 pull requests•Updated Jan 23, 2024Jan 23, 2024

• jruby-ci-build

  Public
  Prepare a JRuby build to run CI actions against

  00 forks•00 stars•00 issues•00 pull requests•Updated Dec 7, 2023Dec 7, 2023

• jzlib

  Public
  JRuby's fork of the jzlib pure-Java zlib library

  Java

  •

  Other

  •11 fork•33 stars•11 issue•11 pull request•Updated May 25, 2023May 25, 2023

• jruby-parser

  Public
  JRuby's parser customized for IDE usage

  Java

  •2121 forks•4848 stars•99 issues•22 pull requests•Updated Feb 1, 2023Feb 1, 2023