Anemone web-spider framework
A capybara driver that uses WebKit via QtWebKit.
A Ruby Rack-based gem for on-the-fly processing - suitable for image uploading in Rails, Sinatra and much more!
A fast Gherkin parser in Ragel (The parser behind Cucumber)
Her is an ORM (Object Relational Mapper) that maps REST resources to Ruby objects. It is designed to build applications that are powered by a RESTful API instead of a database.
Heroku's Ruby Buildpack for Cedar
Automated installation of the Microsoft IE App Compat virtual machines
jquery-datatables gem for rails
Phusion Passenger (mod_rails)
a modular Ruby webserver interface
A Rack and Rails plugin for building offline web applications
spec your xml
Provides single sign-on authentication for web applications, implementing the server-end of Jasig's CAS protocol.
Solr-powered search for Ruby objects
TinyTDS - A modern, simple and fast FreeTDS library for Ruby using DB-Library