Facteur allows you add a messaging system in your Rails 3. You can create many mailboxes for your users. They will be able to send and receive messages.

A library for preloading test data in rails applications.

A gem that helps you generate your factory files.

Create json fixtures from your FactoryGirl factories

FactoryGirl can now handle JSON representation for an object.

Fast ActiveRecord Serializer

Implements a simple system for handling xml news feeds with caching.

Extensions for Finder classes

APN on Rails is a Ruby on Rails gem that allows you to easily add Apple Push Notification (iPhone) support to your Rails application. This version includes an association between an assumed User model and APN::Device

Common library for sending sms and OTP verification

Plugin for read-only content websites with MongoDB storage. Works perfect with Rambler&Co CQRS projects

API for making APIs

Make ActiveRecord understand any date format you want.

load and dump fixtures.

Rails FormBuilder for use with ZURB Foundation.

Rails engine that provides fulltext-search capability using mroonga(formerly. groonga storage engine). Requires Rails ~> 3.0

Encapsulate your database queries with dynamically generated classes

Run ActiveRecord migrations through gh-ost

Running through ActiveRecord's relations, this gem makes it very simple to quickly search through a given model's columns and return an array of objects that match the searched criteria. See the README available in the 'Documentation' repository found in the link below.

Rails I18n de-facto standard library for ActiveRecord 3 model/data translation.