Large collection of useful Rails 3.1 helpers for SEO, Metatags, Facebook OG tags, integration for analytics services like google, woopra, olark, mixpanel and much much more...

Convenient use of inline_styles gem with Rails 3.1+ and Rails 4

Easily convert your checkboxes into iPhone style On/Off buttons. Use with Rails 3.1 Assets Pipeline.

Metadata aggregation and enrichment for cultural heritage institutions.

Kuhsaft is a Rails engine that offers a simple CMS.

Lalala: Probably the best CMS in the world

Bootstrap tools - UI Kit, Devise Views, and Component Partials

mapbox-gl-rails provides Mapbox GL JS sources and stylesheets as a Rails engine for use with the asset pipeline.

easy to use for mdbootstrap on rails projects.

Rails admin engine

The peoplefinder provides searchable staff profiles for your organisation. Since it's a rails engine, you can re-skin it for your organisation.

Rails gem for easy prettyPhoto (v3.1.5) integration. See http://www.no-margin-for-errors.com/projects/prettyphoto-jquery-lightbox-clone/ for more information on how to use prettyPhoto.

Direct upload to a Qiniu storage bucket.

Rails 3.1 drop-in blog engine for existing Rails applications

Admin interface for RubyOnRails projects inspired by Leaf CMS

Clearance-based Rails engine for Software as a Service (Saas) that provides account and project management

Social Stream is a Ruby on Rails engine providing your application with social networking features and activity streams. This gem packages the basic functionality, along with basic actors (user, group) and activity objects (post and comments)

Adyen HPP payments for Solidus Stores

With this gem you get an faq page and the management tools to make it very easy to update your faq and reduce the demand on your sites customer service

Spree Sort Products extends the ability of a taxon on its products to be sorted from the web interface using the drag and drop behavior.