initial-test-data provides a way to create a test fixture using Active Record, Factory Girl, etc.

Allows injecting the Rails env into a class for testing purpose.

JSON serialization for Rails. Straight-forward attributes. Only serialize what you want. Optimally obeys eager-loaded associations

Helper for creating timelines with autoload content while scrolling with ability to transmit the additional parameters

Simple inline editor for Rails applications

Innkeeper allows Rack applications to deal with database multitenancy through ActiveRecord

Links ActiveRecord models together in one-to-many relationships in a preset sequence.

A skeleton that allows extracting queries into atomic, reusable classes.

Insert editable text into pages.

A tool for downloading localized data from your database and creating a locale file for translations

Rails3 engine that adds OAuth2 Provider support to any application built with Devise authentication

Manage your FactoryGirl for create a unique instance of model associations and integrate with rspec

Instant Login is a Rails engine that provides an login with e-mail functionality to your app. It allows you to sned one-time login tokens to your users.

Instant-upload is simply ajax upload for rails (with carrierwave).

InSTEDD Bootstrap is a mountable engine based on bootstrap-sass which provides a Bootstrap theme for all InSTEDD platform applications.

Embed a Twitter widget into your LMS with this LTI App.

Integration Test Kit provides a small DSL for defining integration test commands, and an endpoint for calling them locally.

Integrative is a library for integrating external resources into ActiveRecord models.

An easy and simple way to keep track of interactions on an ActiveRecord model that would normally require a lot of boolean attributes to make possible.

Interapp is a mountable Rails engine that handles simple and secure inter-app messaging using public key cryptography.