Moment.js is a lightweight javascript date library for parsing, manipulating, and formatting dates. This gem allows for its easy inclusion into the rails asset pipeline.

Dragonfly is an on-the-fly Rack-based image handling framework. It is suitable for use with Rails, Sinatra and other web frameworks. Although it's mainly used for images, it can handle any content type.

The OpenShift Origin console is a Rails engine that provides an easy-to-use interface for managing OpenShift Origin applications.

Radiant is a simple and powerful publishing system designed for small teams. It is built with Rails and is similar to Textpattern or MovableType, but is a general purpose content managment system--not merely a blogging engine.

Build reactive applications with the Rails tooling you already know and love.

Dragonfly is a framework that enables on-the-fly processing for any content type. It is especially suited to image handling. Its uses range from image thumbnails to standard attachments to on-demand text generation.

Easy to use Settings helper that loads its data in from config/settings.yml. Handles adding multiple sources, and easy reloading.

jQuery File Upload by Sebastian Tschan integrated for Rails 3.1+ Asset Pipeline

Shoulda consists of test macros, assertions, and helpers added on to the Test::Unit framework

API, command and message handling for WeChat in Rails

Set of addons to help with the activeadmin ui

Client library for easily using the Cloudinary service

API, command and message handling for WeChat in Rails

Log impressions from controller actions or from a model

API and message handling for wechat in rails environment

API and message handling for wechat in rails environment

Force Rails to serve static assets

Seamless Ruby on Rails websocket integration.

JWT authentication for devise with configurable token revocation strategies

Ruby logger that writes directly to LogStash