Help out your favorite open source projects and become a better developer while doing it.

🚀 The easiest way to automate building and releasing your iOS and Android apps

Vagrant is a tool for building and distributing development environments.

Vagrant is a tool for building and distributing development environments.

Create agents that monitor and act on your behalf. Your agents are standing by!

Create agents that monitor and act on your behalf. Your agents are standing by!

:gem: A fast, open source text processor and publishing toolchain, written in Ruby, for converting AsciiDoc content to HTML 5, DocBook 5, and other formats.

The Rails application that powers OpenStreetMap

Connect suppliers, distributors and consumers to trade local produce.

Metasploit Framework

The Ruby Programming Language

a collaborative knowledge-exchange platform in Rails; we welcome first-time contributors! :balloon:

The open LMS by Instructure, Inc.

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

A web application to manage complex group hierarchies with members, events and a lot more.

Q&A-based community knowledge-sharing software

Informative site with EoL dates of everything

A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.

Chef Infra, a powerful automation platform that transforms infrastructure into code automating how infrastructure is configured, deployed and managed across any environment, at any scale

The participatory democracy framework. A generator and multiple gems made with Ruby on Rails.

ManageIQ Open-Source Management Platform

PDF generator (from HTML) plugin for Ruby on Rails

Wiki Education Foundation's Wikipedia course dashboard system

:globe_with_meridians: Jekyll is a blog-aware static site generator in Ruby

Build Ruby on Rails apps 10x faster

Authorization Gem for Ruby on Rails.

An opinionated framework for creating REST-like APIs in Ruby.

An opinionated framework for creating REST-like APIs in Ruby.

Open Source Event Manager. An event management tool tailored to Free and Open Source Software conferences.

Octopress is an obsessively designed framework for Jekyll blogging. It’s easy to configure and easy to deploy. Sweet huh?

Language Savant. If your repository's language is being reported incorrectly, send us a pull request!

An active model wrapper for the Neo4j Graph Database for Ruby.

Classic UI of ManageIQ

API Documentation Browser

A learning management system (LMS) that lets you run an asynchronous online school, where learning is achieved through focused tasks, directed feedback, an iterative workflow, and community interaction.

GitHub Classroom automates repository creation and access control, making it easy for teachers to distribute starter code and collect assignments on GitHub.

Flexible authentication solution for Rails with Warden.

Flexible authentication solution for Rails with Warden.

Computing-focused community centered around link aggregation and discussion

Consul - Open Government and E-Participation Web Software

Audited (formerly acts_as_audited) is an ORM extension that logs all changes to your Rails models.

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

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

EventMachine: fast, simple event-processing library for Ruby programs