Ember's Module Unification brought to Rails

TalkingStick is a Rails Engine that provides easy group-based video conversations, all thanks to the power of WebRTC.

Provides sortable_columns helper in active admin resource definitions.

Simple Dismissible help text for your Rails projects

Billing for rack apps

Adds marketplace functionality to Solidus stores.

Print invoices from a spree order

Spree Active Sale makes it easy to handle flash sale/ daily deals behavior with in a spree application. By this, you can have a variant, product, or group number of products in a taxon, attach that variant, product, or taxon to a sale event with a start and end date for scheduling. So that, your sale event will only be available between the dates given and when the sale is gone(i.e. not live), it will not be accessible at any point till you create a new one or re-schedule the same.

Spree extension for providing Tax Cloud services in USA.

Almanac is the most elegant mountable blog engine that can be easily hooked up in the existing Rails application.

Perform background jobs and ask for the result in a simple way.

Carnival is an easy-to-use and extensible Rails Engine to speed the development of data management interfaces. When you use Carnival you can benefit from made features that are already done. If you need to change anything, you can write your own version of the method, using real Ruby code without worrying about the syntax of the engine.

Pagar.me engine for catarse

PaypalExpress integration with Catarse crowdfunding platform

Edit live website copy.

A data curation Ruby on Rails engine built on Hydra and Sufia

Based on heroku dataclips feature, SQL -> Dataset

Gamification is a collection of models for Ruby on Rails that allows you to make anything a game

Because Blogojevich would be too tough to remember. It's a pluggable blogging system for Rails 3.

Provides a set of valuable features for Registration, Authentication, Management and Internationalization.