Port of the Rails plugin "geokit-rails" to Rails 3, as a gem

A live reloading system that updates just what's needed to offer a smooth experience.

Build JSON API-compliant APIs on Rails with no (or less) learning curve.

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

Translate your apps with pleasure (sort of...) and for free. It's simple i18n web interface, build on top of twitter bootstrap, that one may find helpful in translating app by non-technicals.

Create system tests interactively.

This Modernizr.js was built using the at http://www.modernizr.com/download/ with all options enabled.

Audio/Video Transcoder for Paperclip using FFMPEG/Avconv

Self-hosted performance monitoring engine for Rails apps. Tracks slow requests, N+1 queries, and SQL performance. All data stays in your own database — no third-party cloud required.

Out of the box, Rails will render templates in a controller context only. This gem allows for calling "render" from anywhere: models, background jobs, rake tasks, you name it.

Sail is a lightweight Rails engine that brings an admin panel for managing configuration settings on a live Rails app.

You'll be in stitches at how easy it is to create a service at Stitch Fix

TabsOnRails is a simple Ruby on Rails plugin for creating tabs and navigation menu for a Rails project.

Adds multi themes support to your Rails 3/4 application

A rich text editor for everyday writing

Flexible workflow gem.

Store difference kind of actions (Like, Follow, Star, Block ...) in one table via ActiveRecord Polymorphic Association.

Use searchable selects based on Select2 in Active Admin forms and filters.

NO cookies, NO JavaScript, NO third parties and NO bullshit.

ActiveFedora provides for creating and managing objects in the Fedora Repository Architecture.