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https://github.com/planetruby/awesome-rubies

A collection of awesome Rubies (compilers, interpreters, virtual machines, parsers, doc generators, version managers, etc.)
https://github.com/planetruby/awesome-rubies

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A collection of awesome Rubies (compilers, interpreters, virtual machines, parsers, doc generators, version managers, etc.)

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Awesome Series @ Planet Ruby



# Rubies



A collection of awesome Rubies (compilers, interpreters, virtual machines, parsers, doc generators, version managers, etc.) 



#### _Contributions welcome. Anything missing? Send in a pull request. Thanks._



Note: :gem: stands for the RubyGems page and :octocat: stands for the GitHub page.



## What are Rubies?



- [CRuby, MRI, JRuby, RubySpec, Rubinius, YARV: A Little Bit of Ruby Naming](http://engineering.appfolio.com/appfolio-engineering/2017/12/28/cruby-mri-jruby-rubyspec-rubinius-yarv-a-little-bit-of-ruby-naming) by Noah Gibbs, Appfolio, Dec 2017



## 3x3 News



_3x3 => Ruby 3 will be 3 times faster in 2020_ 



Ruby 3 - the next major update of ruby (planed for 2020) will be 3 times (3x) faster than Ruby 2.



Note: The baseline for Ruby3x3 is 2.0 so all the improvements in 2.x will count toward the 3x goal.



Find out more @ [Ruby 3x3 - Ruby 3 Will Be 3 Times Faster - What's News? »](http://planetruby.github.io/calendar/ruby3x3)



## Major Rubies



- [Ruby](https://www.ruby-lang.org), [:octocat:](https://github.com/ruby) - also known as Matz's Ruby Interpreter (MRI) or CRuby; using the YARV (Yet another Ruby VM) since version 1.9.

   - [Fullstaq Ruby](https://fullstaqruby.org), [:octocat:](https://github.com/fullstaq-labs/fullstaq-ruby-server-edition) - an MRI-based Ruby distribution (fully open source) that's optimized for servers; compiled with the `Jemalloc` and `malloc_trim` patches, allowing lower memory usage and higher performance; by Hongli Lai (Phusion) et al 

- [JRuby](https://www.jruby.org), [:octocat:](https://github.com/jruby) - Ruby on the Java Virtual Machine (JVM)

- [TruffleRuby :octocat:](https://github.com/oracle/truffleruby) - a high performance Ruby built with the [Truffle Language Kit](https://github.com/oracle/graal/tree/master/truffle) on the GraalVM

- [mruby](http://www.mruby.org), [:octocat:](https://github.com/mruby) - lightweight Ruby; designed for linking and embedding within your application

  - [mruby/c :octocat:](https://github.com/mrubyc/mrubyc) - alternative mruby designed for one-chip microprocessors and optimized for small size rather than execution speed e.g. memory size < 40 KiB vs. < 400 KiB 

- [Opal](http://opalrb.com) - [:octocat:](https://github.com/opal), [:gem:](https://rubygems.org/gems/opal) - source-to-source ruby-to-javascript compiler

- [DragonRuby ($40+)](https://dragonruby.itch.io) - a (cross-platform) commercial game toolkit / toolchain (based on a newer variant of  the secret closed-source [RubyMotion](http://www.rubymotion.com)) for Nintendo Switch, XBOX One, PlayStation 4 and others; by Ryan C. Gordon, Amir Rajan, Aaron Lasseigne et al



## Minor / Upcoming Rubies



- [Artichoke Ruby](https://artichoke.github.io/artichoke), [:octocat:](https://github.com/artichoke/artichoke) by Ryan Lopopolo et al - a ruby "wrapper" made with rust that compiles to WebAssembly; by default uses mruby as "backend"   

- [ruruby :octocat:](https://github.com/sisshiki1969/ruruby) - a ruby made with rust (w/ hand-written parser); built from scratch in "100% pure rust", that is, no dependency on any other ruby engine in C such as CRuby (MRI), mruby, etc.  

- [sruby :octocat:](https://github.com/s6ruby) - small, smart, secure, safe, solid & sound (s6) ruby - the ruby programming language for contract / transaction scripts on the blockchain world computer

- [Topaz](http://docs.topazruby.com), [:octocat:](https://github.com/topazproject) - Ruby coded in Python on top of RPython (the toolchain that powers PyPy) 

- [Rubinius (rbx)](http://rubini.us), [:octocat:](https://github.com/rubinius) - designed for concurrency; uses a low-pause generational garbage collector; core library and tools coded in Ruby

- [GoRuby :octocat:](https://github.com/goruby) - Ruby coded in Go

- [tinyrb](http://code.macournoyer.com/tinyrb), [:octocat:](https://github.com/macournoyer/tinyrb) - a tiny subset of Ruby with a Lua'esc Virtual Machine (VM)

- [fruby :octocat:](https://github.com/fruby-lang) - Ruby en Français (French) e.g. classe, défini, si, sinonsi, vrai, faux, fin, etc.



## Discontinued / Rest In Peace (R.I.P.) Rubies 



- [IronRuby](http://ironruby.net), [:octocat:](https://github.com/IronLanguages) - a ruby interpreter built on top of the Microsoft .NET Common Language Runtime (CLR)

- [MacRuby :octocat:](https://github.com/MacRuby) - a ruby interpreter built on top of Apple's Objective-C/Cocoa library

- [MagLev](https://maglev.github.io), [:octocat:](https://github.com/MagLev) - a ruby interpreter built on top of the GemStone/S (64-bit) Virtual Machine (VM)

- [Ruby Enterprise Edition (REE)](http://www.rubyenterpriseedition.com) - builds on top of MRI Rubies, versions 1.8.X and later

- [SmallRuby @ České vysoké učení technické v Praze (ČVUT)](https://swing.fit.cvut.cz/projects/smallruby) - a ruby interpreter built on top of the Smalltalk/X virtual machine

- [Diamondback Ruby (DRuby) @ University of Maryland (UMD)](https://www.cs.umd.edu/projects/PL/druby) - adds gradual typing (with type inference and type annotations) to Ruby

- [CRuby + Eclipse OMR Preview / Pilot :octocat:](https://github.com/rubyomr-preview/rubyomr-preview) - an (experimental) ruby virtual machine (vm) built with the Eclipse OMR (open multi-language runtime kit / components)

- [Cardinal :octocat:](https://github.com/parrot/cardinal) - a ruby compiler for the [Parrot virtual machine](http://parrot.org) (related to Perl 6)



## Ruby-to-Ruby



- [Ruby Next :octocat:](https://github.com/ruby-next/ruby-next), [:gem:](https://rubygems.org/gems/steep) - a ruby-to-ruby-compiler - "transpiler" - and a collection of polyfills for supporting the latest and upcoming ruby features (APIs and syntax) in older versions and alternate rubies

- [pragmas :octocat:](https://github.com/s6ruby/pragmas) - a ruby-to-ruby "search and replace" library that lets you use your own language syntax pragmas - turn on the future today or add your own ideas for easy (re)use for everyone - let's evolve the ruby language together by experimenting in the wild in a pragma(tic) way  - early alpha



## Ruby-to-JavaScript



- [Opal](http://opalrb.com) - [:octocat:](https://github.com/opal), [:gem:](https://rubygems.org/gems/opal) - source-to-source compiler

- [rubys/ruby2js :octocat:](https://github.com/rubys/ruby2js), [:gem:](https://rubygems.org/gems/ruby2js) - minimal yet extensible Ruby to JavaScript converter 

- [RubyJS](http://rubyjs.org/), [:octocat:](https://github.com/rubyjs) - JavaScript standard library based on the Ruby core-lib



## Ruby-to-WebAssembly (WASM)



- [Prism  :octocat:](https://github.com/prism-rb/prism), [:gem:](https://rubygems.org/gems/prism-cli) - a framework for building client-side web apps with ruby and web assembly (wasm); uses mruby and emscripten to compile ruby code to web assembly that runs inside the browser; incl. a runtime for working with the browser's document object model (DOM) and events - early alpha



## Ruby <3 Rust



_Native Ruby Extensions with Rust_



- [Helix](https://usehelix.com/), [:octocat:](https://github.com/tildeio/helix) - lets you write ruby classes in rust without having to write the glue code yourself; offload performance-critical code to rust without leaving your ruby workflow 

- [Rutie :octocat:](https://github.com/danielpclark/rutie) - lets you use ruby in rust or rust in ruby; the missing tie between ruby and rust

- [Ruru :octocat:](https://github.com/d-unseductable/ruru/) - rust + ruby (ruru); replace your ruby code with rust, method by method, class by class; as simple as ruby, as efficient as rust 



## Ruby-to-C (LLVM)



- [Crystal](http://crystal-lang.org), [:octocat:](https://github.com/crystal-lang/crystal) - Ruby-like syntax; statically-typed with type inference; compiles to machine code; run a ye good olde binary



## Ruby-to-Java



- [Mirah](http://www.mirah.org), [:octocat:](https://github.com/mirah) - formerly known as Duby; compiles to Java bytecode; no (extra) runtime library required

- [RubyFlux :octocat:](https://github.com/headius/rubyflux) - a ruby to java static compiler



## Ruby-to-Objective-C/Cocoa



- [RubyMotion](http://www.rubymotion.com) - commercial compiler for Apple iOS/Cocoa



## Ruby-to-Erlang (†)



- [Elixir](http://elixir-lang.org) - Ruby-inspired syntax; a dynamic, functional language for the Erlang VM compiles to BEAM instructions (bytecode)



(†): Note: Elixir is not a Ruby-to-Erlang compiler. Elixir started off with a Ruby-inspired syntax. The language semantics differ e.g. dynamic pure functional vs dynamic general pragmatic "multi-paradigm" language.



## Ruby Version Manager



- [rvm](https://rvm.io), [:octocat:](https://github.com/rvm) - Ruby enVironment Manager; 27,000 lines of shell scripts to manage your rubies (overwrites your cd)

- [rbenv :octocat:](https://github.com/sstephenson/rbenv) - intercepts Ruby commands using shim executables added into your $PATH

- [chruby :octocat:](https://github.com/postmodern/chruby) - changes the current Ruby

- [uru](https://bitbucket.org/jonforums/uru/) - multi-platform Ruby environment manager written in Go; you can run it on Windows without Cygwin

- [asdf-vm :octocat:](https://github.com/asdf-vm/asdf-ruby) - extendable version manager with support for Ruby and many other languages



## Ruby Language Research, Papers & Books



- [Ruby under a Microscope - An Illustrated Guide to Ruby Internals](http://www.nostarch.com/rum) by Pat Shaughnessy; No Starch Press; 360 pages; Nov 2013

- [Ruby Performance Optimization: Why Ruby Is Slow, and How to Fix It](https://pragprog.com/book/adrpo/ruby-performance-optimization) by Alexander Dymo; The Pragmatic Programmers 

- [The Ruby Bibliography](http://rubybib.org), [:octocat:](https://github.com/rubybib/rubybib.org) A list of Ruby research theses and papers.

- [Streem Lang :octocat:](https://github.com/matz/streem) - prototype of stream based programming language by Yukihiro Matsumoto



## Ruby Benchmarks & Tests



- [RubyBench](http://rubybench.org), [:octocat:](https://github.com/ruby-bench) - Ruby Releases Benchmarks



## Ruby Type Annotations / Signatures



- [Official Ruby::Signature :octocat:](https://github.com/ruby/rbs) - official home of the Ruby Type Signature language (`.rbi`); incl. parser, the syntax and the semantics for type signatures (typesigs)

  - [Ruby Type Signature Language (RBI) Syntax Documentation Cheat Sheet](https://github.com/ruby/rbs/blob/master/docs/syntax.md)

- [Steep :octocat:](https://github.com/soutaro/steep), [:gem:](https://rubygems.org/gems/steep) - gradual typing for ruby  

- [Sorbet](https://sorbet.org) [:octocat:](https://github.com/sorbet/sorbet), [:gem:](https://rubygems.org/gems/sorbet) - a fast, powerful typechecker designed for Ruby from Stripe

  - More Sorbet Projects:

    - [sorbet-typed :octocat:](https://github.com/sorbet/sorbet-typed) - a central repository for sharing type definitions for ruby gems

    - [sorbet-rails :octocat:](https://github.com/chanzuckerberg/sorbet-rails) - a set of tools to make sorbet work with rails seamlessly

    - [Sord :octocat:](https://github.com/AaronC81/sord) - a tool to generate Ruby Signature language (`.rbi`) files from YARD documentation

    - [Parlour :octocat:](https://github.com/AaronC81/parlour) - a versatile Ruby Signature language (`.rbi`) generator and plugin system

    - [sorbet-progress :octocat:](https://github.com/jaredbeck/sorbet-progress) - measure your progress as you adopt sorbet, stay motivated!

- [Contracts for Ruby (contracts.ruby) :octocat:](https://github.com/egonSchiele/contracts.ruby), [:gem:](https://rubygems.org/gems/contracts) - a contract is one line of code that you write above a method definition; it validates the arguments to the method, and validates the return value of the method

- [Rubype (Ruby+Type) :octocat:](https://github.com/gogotanaka/Rubype), [:gem:](https://rubygems.org/gems/rubype) - gradual type checking for Ruby

- [Typedocs :octocat:](https://github.com/todesking/typedocs), [:gem:](https://rubygems.org/gems/typedocs) - method type annotations for Ruby

- [Typecheck :octocat:](https://github.com/plexus/typecheck), [:gem:](https://rubygems.org/gems/typecheck) - type checking for Ruby methods 

- [RDL :octocat:](https://github.com/tupl-tufts/rdl), [:gem:](https://rubygems.org/gems/rdl/) - a lightweight system for adding types, type checking, and contracts to Ruby. In RDL, types can be used to decorate methods



For more see the [Awesome Types page »](https://github.com/typesigs/awesome-types) 



## Ruby Stdlib (Core) Extensions / Refinements



- [Active Support :octocat:](https://github.com/rails/rails/tree/master/activesupport), [:gem:](https://rubygems.org/gems/activesupport)

    - [Active Support Core Extensions @ RailsGuides](http://guides.rubyonrails.org/active_support_core_extensions.html) 

- [Zucker :octocat:](https://github.com/janlelis/zucker), [:gem:](https://rubygems.org/gems/zucker) - collection of Ruby refinements; lots of small refinements to sweeten your Ruby code

- [Powerpack :octocat:](https://github.com/bbatsov/powerpack), [:gem:](https://rubygems.org/gems/powerpack) by Bozhidar Batsov et al  - collection of Ruby core extensions for array, enumerable, hash, numeric, string, etc.

- [PowerCore :octocat:](https://github.com/arturoherrero/powercore) by Arturo Herrero et al - collection of Ruby core extensions for array, date, fixnum, hash, kernel, object, proc, string, etc.

 



## Ruby Library Collections



- [SciRuby](http://sciruby.com) - [:octocat:](https://github.com/SciRuby) - tools for scientific computing in Ruby e.g. nmatrix, statsample, etc. 

- [Functional Ruby :octocat:](https://github.com/jdantonio/functional-ruby), [:gem:](https://rubygems.org/gems/functional-ruby) - adding functional programming tools to Ruby; inspired by Erlang, Clojure, Haskell, and Functional Java

- [Concurrent Ruby :octocat:](https://github.com/ruby-concurrency/concurrent-ruby), [:gem:]() - modern concurrency tools including agents, futures, promises, thread pools, supervisors, and more; inspired by Erlang, Clojure, Scala, Go, Java, JavaScript, and classic concurrency patterns



## Ruby Quick References / Cheat Sheets



- [Ruby QuickRef](http://www.zenspider.com/ruby/quickref.html) - Language, Standard Library, Tools

- [Learn Ruby in Y Minutes](http://learnxinyminutes.com/docs/ruby), [:octocat:](https://github.com/adambard/learnxinyminutes-docs) - A whirlwind tour of Ruby - learnruby.rb



## Ruby Parser / Unparser



- [seattlerb/ruby_parser (RP) :octocat:](https://github.com/seattlerb/ruby_parser), [:gem:](https://rubygems.org/gems/ruby_parser) - a ruby parser written in ruby (using racc -- which does by default use a C extension). RP's output is the same as ParseTree's output: s-expressions using ruby's arrays and base types

- [whitequark/parser :octocat:](https://github.com/whitequark/parser), [:gem:](https://rubygems.org/gems/parser) - a ruby parser written in ruby;  also includes an "unparser" to produce equivalent source code from the parser's Abstract Syntax Tree (AST)s



## Ruby Documentation Generators



- [YARD](http://yardoc.org), [:octocat:](https://github.com/lsegal/yard), [:gem:](https://rubygems.org/gems/yard) - Yay! A Ruby Documentation Tool 

- [SDoc :octocat:](https://github.com/voloko/sdoc), [:gem:](https://rubygems.org/gems/sdoc) - RDoc generator to build searchable HTML documentation for Ruby code

- [RDoc :octocat:](https://github.com/rdoc), [:gem:](https://rubygems.org/gems/rdoc) - RDoc produces HTML and online documentation for Ruby code 



## Ruby Linter / Code Checker / Static Code Analyzer



- [RuboCop :octocat:](https://github.com/bbatsov/rubocop), [:gem:](https://rubygems.org/gems/rubocop) - a Ruby static code analyzer

- [reek :octocat:](https://github.com/troessner/reek), [:gem:](https://rubygems.org/gems/reek) - code smell detector for Ruby

- [RubyCritic :octocat:](https://github.com/whitesmith/rubycritic), [:gem:](https://rubygems.org/gems/rubycritic)



## Ruby Binary Packagers



- [Traveling Ruby](http://phusion.github.io/traveling-ruby), [:octocat:](https://github.com/phusion/traveling-ruby) - self-contained, portable Ruby binaries

- [Omnibus :octocat:](https://github.com/chef/omnibus), [:gem:](https://rubygems.org/gems/omnibus) - mini language (that is, domain-specific language (DSL) for installers (that is, binary packages)



## Ruby Gems / Libraries



- [RubyGems](https://rubygems.org), [:octocat:](https://github.com/rubygems) - 100,000+ Gems

- [Awesome Ruby :octocat:](https://github.com/markets/awesome-ruby)

- [Awesome ActiveRecord :octocat:](https://github.com/planetruby/awesome-activerecord)

- [Awesome Jekyll @ Planet Jekyll :octocat:](https://github.com/planetjekyll/awesome-jekyll)

- [Awesome Markdown :octocat:](https://github.com/writekit/awesome-markdown)

- [Ruby Gem of the Week Series @ Planet Ruby](http://planetruby.github.io/gems), [:octocat:](https://github.com/planetruby/gems)

- [Trending Ruby Projects @ GitHub](https://github.com/trending?l=ruby) - Today, This Week, This Month

- [Alltime Starred Ruby Projects @ GitHub](https://github.com/search?utf8=✓&q=language%3ARuby&type=Repositories&s=stars&l=Ruby)

- [Ruby Toolbox](https://www.ruby-toolbox.com)

- [Gems @ Ruby Bookmarks :octocat:](https://github.com/dreikanter/ruby-bookmarks#gems)



## Ruby Community (Events, Questions & Answers, Announcements, etc.)



- [Ruby @ Reddit](http://www.reddit.com/r/ruby)

- [Awesome Ruby Events :octocat:](https://github.com/planetruby/calendar) - meetups, conferences, camps, etc. from around the world 

- [Planet Ruby](http://planetruby.herokuapp.com), [:octocat:](https://github.com/planetruby/planet) - online news reader about all things ruby



## Thanks



Jesse Cooke • Marcel Hlopko • Sota Yamashtia



## Meta



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