RailsAdmin is a Rails 3 engine that provides an easy-to-use interface for managing your data
Mongoid extension for tracking changes on embedded documents
history tracking, auditing, undo, redo for mongoid
An enterprise security extension for devise, trying to meet industrial standard security demands for web applications.
Extraction of the ActiveRecord::Base#import functionality from ar-extensions for Rails 3 and beyon
A library for storing encrypted data in Mongo
Integration of RubyMoney - Money with Rails
Database based asynchronous priority queue system -- Extracted from Shopify
A Devise extension to allow your app to utilise Google's 2FA Mobile app
Rack-based interactive console (à la Rails console) for your web application's front-end
Ckeditor integration gem for rails
Simple Rails 3.1 glue for the Faye messaging protocol.
Simple pub/sub messaging for the web
Log4r is a comprehensive and flexible logging library for use in Ruby programs. It features a heirarchical logging system of any number of levels, custom level names, multiple output destinations per log event, custom formatting, and more.