Rails mail_to helper with encoding (removed from core in Rails 4.0)

Protect Rails applications against bots and brute force attacks without annoying humans.

Plugin for running methods on ActiveRecord models after record is committed

Define custom health checks for your app (as in: are there any new users in the past 24 hours) and see the results in a simple /healthcheck page that you can use to monitor your production app with UptimeRobot, Pingdom, or other monitoring services. It's also useful as a drop-in replacement for t...

animate.css for rails

Ships backbone and underscore to your Rails 3.1 application through the new asset pipeline. Rails 3.0 is supported via generators.

Bandit provides a way to do multi-armed bandit optimization of alternatives in a rails website

Allows access and use of BigBlueButton from a Ruby on Rails application

Wrappers for JavaScript alert(), confirm() and other flexible dialogs using Twitter's bootstrap framework for Rails 3.1+

CMS built on rails with love.

Wraps CanCan and RoleModel up to make role based authorisation really easy in Rails 3.x.

Capybara API that knows how to wait for Angular in end to end specs

The spicy feature toggle framework

An awesome, flexible, powerful, useful, tricky and liar Rails 3 recommendations engine.

Generates a time_select field like Google calendar.

Add web components to the Rails asset pipeline

Preload factories (Factory Bot) just like fixtures. It will be easier and, probably, faster!

Easily add autocomplete geo-functionality to your Rails app :)

A gem to document components in GOV.UK frontend applications

A smarter way of doing many-to-many relationships in Rails.