A good, simple, solid tagging extension for ActiveRecord

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.

Metamagic is a simple Ruby on Rails plugin for creating meta tags.

Want to automatically detect mobile devices that access your Rails application? Mobile Fu allows you to do just that. People can access your site from a Palm, Blackberry, iPhone, iPad, Nokia, etc. and it will automatically adjust the format of the request from :html to :mobile.

packs-rails establishes and implements a set of conventions for splitting up large monoliths.

Use of web components and polymer-project in Ruby on Rails projects

Mass populate an Active Record database.

Write React UI components in pure Ruby.

REST in Place is an AJAX Inplace-Editor that talks to RESTful controllers.

It can be useful when you you are developing some app where you will work with meetings, events etc.

X-editable for Rails

Administrate fields for active storage

Use this module to defer actions to the after-commit hook. This is useful if you want to trigger actions in after_create, after_destroy and after_update callbacks but want to execute them outside of the transaction (for example, to avoid deadlocks).

Define your permission rules as role- or role group specific permits. Integrates well with multiple Devise user acounts. Includes rules caching. Store permissions in yaml file or key-value store

Define your permission rules as role- or role group specific permits. Integrates well with multiple Devise user acounts. Includes rules caching. Store permissions in yaml file or key-value store

Get a better understanding of your application performance and behavior (SQL queries, jobs, cache, routes, logs, etc)

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

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

Audio/Video Transcoder for Paperclip using FFMPEG/Avconv

SAML IdP (Identity Provider) library in ruby