Twitter Bootstrap CSS toolkit for Rails 3 projects

Custom configuration storage for Rails

The datejs Javascript library ready to play with Rails

DependentFields makes it easy to hide or show dependent fields in forms based on select or checkbox values

Simple javascript timezone detection

Add UID support to Devise

Ductwork lets you build complex durable pipelines quickly and easily using intuitive Ruby tooling and a natural DSL.

Rails asset pipeline plugin and CSS mappings for the Entypo pictograms by Daniel Bruce http://www.entypo.com

Rails 3.2/4.x asset gem for EpicEditor

Asset gem for es5-shim

A polyfill for ES6-style Promises with integration for Rails.

Fomantic UI, converted to Sass and ready to drop into Rails, Compass, or Sprockets.

formtastic-plus-bootstrap makes a formtastic form to look like a bootstrap form.

Programmatically generate assets for the Rails asset pipeline.

Instant concurrent indexes for Rails

This gem provides jquery.gridster.js and jquery.gridster.css for your Rails 3+ application.

Allows multiple environments in database.yml, and dynamically switching them.

A Rails API tool for building API services.

Provides Holder.js to render image placeholders entirely on the client side

Plug-in that provides I18n Inflector module integration with Rails.