Rocket Pants adds JSON API love to Rails and ActionController, making it simpler to build API-oriented controllers.

AlgoliaSearch integration to your favorite ORM

CMS for Rails. For Reals.

Rich is an opinionated WYSIWYG editor for Rails based on CKEditor.

Ruby on Rails data listing gem with built-in sorting, filtering and in-place editing.

A simple cms and blogging engine for rails apps.

CouchRest Model provides aditional features to the standard CouchRest Document class such as properties, view designs, associations, callbacks, typecasting and validations.

Bootstrap-ify pagination with Kaminari - Compatible with Bootstrap 2.x, 3.x

Add a blog to your Rails application in minutes with this mountable Rails Engine

LINES lets you manage your posts in a clear, consistent frontend. The gracefully slender editor keeps your editing simple and lets you just splash around in your ideas. Once you're happy, just hit publish and see your text, code examples, images, and links shine.

Kuroko2 is a web-based job scheduler/workflow manager created at Cookpad Inc.

Rails mountable Notification for any applications.

will_filter is a powerful customizable framework for filtering active_record models.

Search object DSL

uffizzi_core

Crowd-sourced translation and localization engine for Rails.

Admin interface builder

Save time and headaches, and create a more easily maintainable set of pages, with ActiveScaffold. ActiveScaffold handles all your CRUD (create, read, update, delete) user interface needs, leaving you more time to focus on more challenging (and interesting!) problems.

FastPage applies the MySQL "deferred join" optimization to your ActiveRecord offset/limit queries.

iQvoc - a SKOS(-XL) vocabulary management system built on the Semantic Web