Ruby on Rails

Vagrant is a tool for building and distributing development environments.

Flexible authentication solution for Rails with Warden.

A privacy-aware, distributed, open source social network.

A deployment automation tool built on Ruby, Rake, and SSH.

Liquid markup language. Safe, customer facing template language for flexible web apps.

Acceptance test framework for web applications

The administration framework for Ruby on Rails applications.

A Lightweight Sass Tool Set

Easy file attachment management for ActiveRecord

Classier solution for file uploads for Rails, Sinatra and other Ruby web frameworks

A library for setting up Ruby objects as test data.

Forms made easy for Rails! It's tied to a simple DSL, with no opinion on markup.

RailsAdmin is a Rails engine that provides an easy-to-use interface for managing your data

help to kill N+1 queries and unused eager loading

A runtime developer console and IRB alternative with powerful introspection capabilities.

Guard is a command line tool to easily handle events on file system modifications.

Pro Git Book Content, 1st Edition - This content is deprecated. See 2nd edition at [progit2](https://github.com/progit/progit2)

Pagination library for Rails and other Ruby applications

RSpec for Rails 7+

A Rails form builder plugin with semantically rich and accessible markup.

Rails for API only applications

Sequel: The Database Toolkit for Ruby

A tagging plugin for Rails applications that allows for custom tagging along dynamic contexts.

Manage your Ruby application's gem dependencies

Code coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites

A Ruby interface to the Twitter API.

A Ruby client library for Redis

Actor-based concurrent object framework for Ruby

JRuby, an implementation of Ruby on the JVM