To sort the instance of ActiveRecord::Relation by Redis

Draw flow-chart by Workflow lazily

A fullscreen, hardware accelerated slider for jQuery.

Ruby Api for WeiXin

A Rails engine to provide the ability to add documentation to a Rails application

Like acts as state machine (aasm), but _way_ better (it's in Ruby too!)

fastdfs client for ruby

Spree is a complete open source e-commerce solution for Ruby on Rails.

Do some browser detection with Ruby. Includes ActionController integration.