A collection of awesome Ruby libraries, tools, frameworks and software 💎

Inspired by awesome-php, awesome-python, frontend-dev-bookmarks and ruby-bookmarks.

Contributions are always welcome! The idea is to build a categorized community-driven collection.

• Awesome Ruby
  • Style Guide
  • Package Management
  • Environment Management
  • Documentation
  • Testing
  • Web Frameworks
  • Web Servers
  • Database Drivers
  • ORM
  • HTTP
  • API Builder
  • CLI
  • Authentication
  • OAuth
  • Authorization
  • Queue
  • Scheduling
  • Template Engine
  • Assets
  • Markdown Processors
  • Search
  • Internationalization
  • Geolocation
  • Caching
  • File Upload
  • Email
  • Form Builder
  • Imagery
  • Video
  • WebSocket
  • HTML Parsing
  • Web Crawling
  • Processes and Threads
  • Concurrency
  • Core Extensions
  • Error Handling and Monitoring
  • Code Analysis and Metrics
  • Debugging Tools
  • Profiler
  • Third-party APIs
  • CMS
  • Admin Interface
  • Static Site Generation
  • Forum Engine
  • E-Commerce and Payments
  • Analytics
  • DevOps Tools
  • Git Tools
  • GUI
  • Game Development
  • Robotics
  • Misc
  • Resources

• Ruby style guide - Community-driven Ruby coding style
• Rails style guide - Community-driven Rails best practices and style for Rails 3 and 4

• Gems

  • RubyGems - Community's gem hosting service
  • Bundler - Manage your application's gem dependencies with less pain

• Packages and Applications

  • Homebrew - The missing package manager for OS X
  • Homebrew-cask - a CLI workflow for the administration of Mac applications distributed as binaries
  • CocoaPods - The Objective-C dependency manager

• rbenv — Use rbenv to pick a Ruby version for your application and guarantee that your development environment matches production
• RVM — RVM is a command-line tool which allows you to easily install, manage, and work with multiple ruby environments from interpreters to sets of gems
• dotenv

• RDoc - RDoc produces HTML and command-line documentation for Ruby projects
• YARD - YARD enables the user to generate consistent, usable documentation that can be exported to a number of formats very easily

• RSpec - Behaviour Driven Development for Ruby
• minitest - minitest provides a complete suite of testing facilities supporting TDD, BDD, mocking, and benchmarking
• Test::Unit - Test::Unit is a xUnit family unit testing framework for Ruby
• Cucumber - BDD that talks to domain experts first and code second
• Capybara - Acceptance test framework for web applications
• Appraisal - Appraisal integrates with bundler and rake to test your library against different versions of dependencies
• factory_girl - A library for setting up Ruby objects as test data
• shoulda-matchers - Provides Test::Unit- and RSpec-compatible one-liners that test common Rails functionality. These tests would otherwise be much longer, more complex, and error-prone.

• Ruby on Rails
• Sinatra
• Padrino
• Lotus

• Rack - A Ruby Webserver Interface
• Unicorn - Rack HTTP server for fast clients and Unix
• Thin - Tiny, fast & funny HTTP server
• Puma - A modern, concurrent web server for Ruby

• ruby-pg - Ruby interface to PostgreSQL 8.3 and later
• mysql2 - A modern, simple and very fast Mysql library for Ruby (binding to libmysql)
• SQLite3
• redis-rb - A Ruby client that tries to match Redis' API one-to-one, while still providing an idiomatic interface

• ActiveRecord
• Sequel - Sequel is a simple, flexible, and powerful SQL database access toolkit for Ruby
• Mongoid - An ODM (Object-Document-Mapper) framework for MongoDB in Ruby

• RESTClient - Simple HTTP and REST client for Ruby, inspired by microframework syntax for specifying actions
• httparty
• Faraday

• Grape - An opinionated micro-framework for creating REST-like APIs in Ruby
• Rails::API
• jbuilder - Create JSON structures via a Builder-style DSL
• rabl - General ruby templating with json, bson, xml, plist and msgpack support
• Pliny - Opinionated template Sinatra app for writing excellent APIs in Ruby
• Roar - Resource-Oriented Architectures in Ruby

• Rake - A make-like build utility for Ruby
• Thor - A toolkit for building powerful command-line interfaces
• Commander - The complete solution for Ruby command-line executables
• Slop - Simple Lightweight Option Parsing

• Devise - A flexible authentication solution for Rails based on Warden
• Authlogic
• OmniAuth - A library that standardizes multi-provider authentication utilizing Rack middleware
• Sorcery

• OAuth2 - A Ruby wrapper for the OAuth 2.0 protocol
• Doorkeeper - An OAuth2 provider for Rails

• CanCanCan
• Pundit - Minimal authorization through OO design and pure Ruby classes

• Resque — A Redis-backed Ruby library for creating background jobs
• Sidekiq — A full-featured background processing framework for Ruby. It aims to be simple to integrate with any modern Rails application and much higher performance than other existing solutions.
• Delayed::Job — Database backed asynchronous priority queue

• Whenever - A Ruby gem that provides a clear syntax for writing and deploying cron jobs
• rufus-scheduler - Job scheduler for Ruby (at, cron, in and every jobs)
• resque-scheduler - A light-weight job scheduling system built on top of Resque

• Tilt - Generic interface to multiple Ruby template engines
• Haml - HTML Abstraction Markup Language
• Slim
• Liquid

• Sass - Sass makes CSS fun again
• Management:
  • Sprockets - Rack-based asset packaging system
  • Rails Assets - Bundler to Bower proxy

• kramdown — Kramdown is yet-another-markdown-parser but fast, pure Ruby, using a strict syntax definition and supporting several common extensions
• Redcarpet — A fast, safe and extensible Markdown to (X)HTML parser
• Maruku — A pure-Ruby Markdown-superset interpreter

• Thinking Sphinx - A library for connecting ActiveRecord to the Sphinx full-text search tool
• elasticsearch-ruby
• Sunspot - A Ruby library for expressive, powerful interaction with the Solr search engine
• Searchkick - Searchkick learns what your users are looking for. As more people search, it gets smarter and the results get better. It’s friendly for developers - and magical for your users.
• pg_search - Builds ActiveRecord named scopes that take advantage of PostgreSQL's full text search
• has_scope - Has scope allows you to easily create controller filters based on your resources named scopes.

• i18n - Ruby Internationalization and localization solution
• i18n-tasks - Manage missing and unused translations with the awesome power of static analysis
• twitter-cldr-rb - Ruby implementation of the ICU (International Components for Unicode) that uses the Common Locale Data Repository to format dates, plurals, and more

• Geocoder
• Geokit

• Dalli - A high performance pure Ruby client for accessing memcached servers

• CarrierWave - Classier solution for file uploads for Rails, Sinatra and other Ruby web frameworks
• PaperClip - Easy file attachment management for ActiveRecord
• DragonFly - A Ruby gem for on-the-fly processing - suitable for image uploading in Rails, Sinatra and much more!

• Mail - A Really Ruby Mail Library
• Pony
• Mailman - An incoming mail processing microframework in Ruby
• MailCatcher - Catches mail and serves it through a dream

• Simple Form - Rails forms made easy
• Formtastic - A Rails form builder plugin with semantically rich and accessible markup

• MiniMagick - A ruby wrapper for ImageMagick or GraphicsMagick command line
• RMagick - RMagick is an interface between Ruby and ImageMagick

• Streamio FFMPEG - Simple yet powerful wrapper around the ffmpeg command for reading metadata and transcoding movies

• Faye - A set of tools for simple publish-subscribe messaging between web clients. It ships with easy-to-use message routing servers for Node.js and Rack applications, and clients that can be used on the server and in the browser.

• Nokogiri - An HTML, XML, SAX, and Reader parser with XPath and CSS selector support

• MetaInspector - Ruby gem for web scraping purposes. It scrapes a given URL, and returns you its title, meta description, meta keywords, an array with all the links, all the images in it, etc.

• Parallel
• posix-spawn - Fast Process::spawn for Rubys >= 1.8.7 based on the posix_spawn() system interfaces

• EventMachine - An event-driven I/O and lightweight concurrency library for Ruby
• Celluloid - Actor-based concurrent object framework for Ruby

• ActiveSupport
• Ruby Facets - The premiere collection of general purpose method extensions and standard additions for Ruby

• Exception Notification - A set of notifiers for sending notifications when errors occur in a Rack/Rails application
• Errbit - The open source, self-hosted error catcher
• Airbrake - The official Airbrake library for Ruby on Rails (and other Rack based frameworks)
• Better Errors - Better error page for Rack apps

• SimpleCov - Code coverage for Ruby 1.9+ with a powerful configuration library and automatic merging of coverage across test suites
• Rubocop
• rails_best_practices - A code metric tool for rails projects
• Flay - Flay analyzes code for structural similarities. Differences in literal values, variable, class, method names, whitespace, programming style, braces vs do/end, etc are all ignored. Making this totally rad.
• Flog - Flog reports the most tortured code in an easy to read pain report. The higher the score, the more pain the code is in.
• Brakeman - A static analysis security vulnerability scanner for Ruby on Rails applications.

• debugger
• Byebug - A simple to use, feature rich debugger for Ruby 2

• ruby-prof - a code profiler for MRI rubies
• rack-mini-profiler - Profiler for your development and production Ruby rack apps
• perftools.rb - gperftools (formerly known as google-perftools) for Ruby code

• Octokit - Ruby toolkit for the GitHub API
• fb_graph - A full-stack Facebook Graph API wrapper
• twitter - A Ruby interface to the Twitter API
  • t - A command-line power tool for Twitter
• tweetstream - A simple library for consuming Twitter's Streaming API
• ruby-gmail - A Rubyesque interface to Gmail
• instagram-ruby-gem - The official gem for the Instagram REST and Search APIs
• soundcloud-ruby - Official SoundCloud API Wrapper for Ruby
• linkedin - Provides an easy-to-use wrapper for LinkedIn's REST APIs
• youtube_it - An object-oriented Ruby wrapper for the YouTube GData API
• ruby-trello - Implementation of the Trello API for Ruby
• hipchat-rb - HipChat HTTP API Wrapper in Ruby with Capistrano hooks

• Refinery CMS
• Radiant
• LocomotiveCMS

• ActiveAdmin - a Ruby on Rails framework for creating elegant backends for website administration
• RailsAdmin

• Jekyll - Transform your plain text into static websites and blogs
• Middleman - A static site generator using all the shortcuts and tools in modern web development

• Forem

• Active Merchant - A simple payment abstraction library extracted from Shopify
• Spree
• ROR Ecommerce
• stripe-ruby - Stripe Ruby bindings

• Gabba
• Ahoy - A solid foundation to track visits and events in Ruby, JavaScript, and native apps

• Capistrano - A remote server automation and deployment tool written in Ruby
• Backup - Provides an elegant DSL in Ruby for performing backups on UNIX-like systems
• Puppet - An automated administrative engine for your Linux, Unix, and Windows systems, performs administrative tasks (such as adding users, installing packages, and updating server configurations) based on a centralized specification
• Vagrant - Create and configure lightweight, reproducible, and portable development environments
• Chef - A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure

• hub - a command line tool that wraps Git in order to extend it with extra features and commands that make working with GitHub easier
• Rugged - Ruby bindings to libgit2

• Shoes

• Gosu - A 2D game development library for the Ruby and C++ programming languages

• RubyMotion - A revolutionary toolchain that lets you quickly develop and test native iOS and OS X applications for iPhone, iPad and Mac
• Ruboto - A platform for developing full stand-alone apps for Android using the Ruby language and libraries

• Artoo - Next generation robotics framework with support for different platforms: Arduino, Leap Motion, Pebble, Raspberry Pi, etc.

• Betty - Friendly English-like interface for your command line. Don't remember a command? Ask Betty
• Foreman - Manage Procfile-based applications
• Prawn - Fast, Nimble PDF Writer for Ruby
• Pry - A powerful alternative to the standard IRB shell for Ruby
• Guard - A command line tool to easily handle events on file system modifications
• play ► - Your company's dj
• Treetop - PEG (Parsing Expression Grammar) parser
• Kaminari - A Scope & Engine based, clean, powerful, customizable and sophisticated paginator for modern web app frameworks and ORMs

• GitHub Explore
• The Ruby Toolbox - A comprehensive catalog of Ruby and Rails plug-ins, gems, tools and resources for Ruby developers with popularity ratings based on GitHub watchers and Gem downloads
• RubyFlow - Ruby Programming Community Link Blog
• RubyDaily - Community driven news