Implementations:

• Main: The original Ruby implementation, written in C.

  • Can be hosted in a C application; see Running Ruby in C.

• JRuby (Source): Ruby implementation written for the JVM.

• IronRuby (appears to be stalled)
• mRuby: A lightweight implementation of Ruby. Has a compile-time package manager.
• mruby/c: An even smaller implementation of Ruby for microcontrollers with limited memory.
• Opal: A Ruby-to-JS transpiler.
• Sorbet: Type-checker for Ruby.
• Wruby Web ruby - a port of minimal ruby (mruby).
• run.rb run.rb - allows you to run Ruby code in the browser
• Artichoke - a Ruby implementation written in Rust and Ruby. You can try it out here: https://artichoke.run
• ruby.wasm - a collection of "official" WebAssembly ports of the CRuby. You can
  try it out here
• rlang Rlang - a (subset of) Ruby to WebAssembly compiler
• cry-wasm - speeds up Ruby code using Crystal. By applying simple type restrictions to Ruby code, convert it to Crystal code, compile it to WebAssembly, and call it with Wasmer or Wasmtime.
• Ruvy - toolchain for bundling ruby.wasm pre-initialized and bundled with Ruby code
• WebAssembly Language Runtimes - up-to-date MRI Ruby prebuilt for WASI

Reading

Books

• A community-driven Ruby style guide
• CodeCademy Ruby
• Design Patterns in Ruby
• Developing Games With Ruby - Tomas Varaneckas
• I Love Ruby
• Introduction to Programming with Ruby - Launch School
• Just Enough Ruby to Get By
• Learn Ruby First - Frederick John
• Learn Ruby the Hard Way - Zed A. Shaw
• Learn to Program - Chris Pine
• Mastering Roda - Federico Iachetti, Avdi Grimm and Jeremy Evans
• Mr. Neighborly's Humble Little Ruby Book
• Object Oriented Programming with Ruby - Launch School
• Practicing Ruby
• Programming Ruby
• Ruby Best Practices - Gregory Brown (PDF)
• Ruby Hacking Guide
• Ruby in Twenty Minutes
• Ruby Koans
• Ruby Learning
• Ruby Notes for Professionals - Compiled from StackOverflow Documentation (PDF)
• Ruby one-liners cookbook - Sundeep Agarwal
• Ruby Style Guide - Airbnb
• Ruby User's Guide
• Ruby Web Dev: The Other Way - Yevhen Kuzminov
• Rubyfu
• The Bastards Book of Ruby
• The Book Of Ruby - Huw Collingbourne
• The Definitive Ruby Tutorial For Complete Beginners - Jesus Castello
• The Little Book Of Ruby - Huw Collingbourne
• The Ruby Reference - Victor Shepelev
• The Unofficial Ruby Usage Guide (at Google) - Ian Macdonald
• Using Blocks in Ruby - Jay McGavren (PDF) (:card_file_box: archived)
• Why's (Poignant) Guide to Ruby

RSpec

• Better Specs (RSpec Guidelines with Ruby)

Ruby on Rails

• A community-driven Rails style guide
• Api on Rails 6 - Alexandre Rousseau
• Building REST APIs with Rails - Abraham Kuri Vargas
• Kestrels, Quirky Birds, and Hopeless Egocentricity - Reg Braithwaite
• Learn Ruby on Rails as You Modify a Craigslist Clone
• Learn Ruby on Rails: Book One - Daniel Kehoe (PDF, EPUB) (Leanpub account or valid email requested)
• Objects on Rails - Avdi Grimm
• Rails Girls Guides
• Ruby Notes for Professionals - Compiled from StackOverflow Documentation (PDF)
• Ruby on Rails 3.2 - Step by Step
• Ruby on Rails 4.0 Guide
• Ruby on Rails Guides
• Ruby on Rails Notes for Professionals - Compiled from StackOverflow Documentation (PDF)
• Ruby on Rails Tutorial (Rails 5): Learn Web Development with Rails - Michael Hartl
• Upgrading to Rails 4

Sinatra

• Sinatra Book

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Tags: language   functional   dynamic   object   metaobject   web assembly   jvm   clr   native  

Last modified 16 November 2025

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