The Solid gem from the TigerLily team but modified to work with LocomotiveCMS

lorem ipsum generator

Get back more detailed information about the arguments for a method

A Mizar Console with Sophisticated Reasoning Support

Moonstone Lua Compiler

Flay fork with modifications to run on 1.9.2

Occupational Safety and Health Automation

Get back more detailed information about the parameters for a method.

Pure imports aspects of the pure functional paradigm into Ruby.

A Smalltalk-ish live dev environment for Ruby.

Railroader detects security vulnerabilities in Ruby on Rails applications via static analysis.

a code metric tool for rails codes, written in Ruby.

Generate a Rails app with application templates

An parser for Rails apps

Format your Ruby code.

You don't have to wait until Ruby 2.0 to get (named|keyword) arguments support. Arguments has been tested with Ruby 1.8.6 and ruby 1.9.1 and eventually will work with JRuby (if someone is interested in contributing, I guess is possible since merb-action-args works with JRuby)

A tool for analysis and visualization of projects written in Ruby

RedBase is a ruby on rails engine which provides a very basic web application to use with other ruby on rails applications.

Complete engine for Stripe gateway-based shopping cart to be used with a RefineryCMS project

Alternative and more powerful gettext parser for ruby files. It covers some special cases which the normal parser can't handle