Use CodeMirror with Rails
OmniAuth strategy for Instagram.
Track changes to your models' data. Good for auditing or versioning.
HTML Validation done locally with HTML Tidy.
This gem transform an Array into a excel file using the spreadsheet gem.
Authorization Gem for Ruby on Rails.
Facebook OAuth2 Strategy for OmniAuth
Transparent object persistence for Ruby
Easy file attachment management for ActiveRecord
Date and time validation plugin for ActiveModel and Rails. Supports multiple ORMs and allows custom date/time formats.
Uploadify plugin for Ruby on Rails asset pipeline
A LinkedIn OAuth2 strategy for OmniAuth.
Simple bitmask attribute support for ActiveRecord 3+
Provides a single point of entry for using basic features of ruby ORMs
An object-oriented Ruby wrapper for the YouTube GData API
Rails: 2 CPUs = 2x Testing Speed for RSpec, Test::Unit and Cucumber
mini replacement for RMagick
get the mimetype of a file directly in Ruby
Gem-ed version of white_list Rails plugin
Rails3 gem'ed version of plugin to allow AJAX file upload imitation (via IFRAME).
Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later.
A Ruby gem that connects to various URL shortening services like RubyURL, moourl, etc.
A new plugin approach to attempting to solve the usage of subdomains in linking and routing in Rails projects.