A platform for community discussion. Free, open, simple.

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

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

A Ruby static code analyzer and formatter, based on the community Ruby style guide.

A library for generating fake data such as names, addresses, and phone numbers.

Better error page for Rack apps

Create beautiful JavaScript charts with one line of Ruby

Modern concurrency tools including agents, futures, promises, thread pools, supervisors, and more. Inspired by Erlang, Clojure, Scala, Go, Java, JavaScript, and classic concurrency patterns.

Slim is a template language whose goal is to reduce the syntax to the essential parts without becoming cryptic.

Decorators/View-Models for Rails Applications

Pretty print your Ruby objects with style -- in full color and with proper indentation

JRuby, an implementation of Ruby on the JVM

Easy activity tracking for models - similar to Github's Public Activity

A very fast & simple Ruby web server

Data mapping and persistence toolkit for Ruby

A statesmanlike state machine library.

MacRuby is an implementation of Ruby 1.9 directly on top of Mac OS X core technologies such as the Objective-C runtime and garbage collector, the LLVM compiler infrastructure and the Foundation and…

Ruby One Time Password library

Standards-compliant WebSocket client and server

Flexible Ruby on Rails breadcrumbs plugin.

A system for processing messages from RabbitMQ.

A Gem to add Follow functionality for models

Webmachine, the HTTP toolkit (in Ruby)

A small PEG based parser library. See the Hacking page in the Wiki as well.

Easily add an NSA backdoor into your Rails app.

Socialize your app with Likes, Follows and Mentions

A Ruby client for the Cassandra distributed database

Direct Upload to Amazon S3 With CORS

A unit handling library for ruby

Controller action arguments parameterizer for Rails 4+ & Ruby 2.0+