ripple is an object-mapper library for Riak, the distributed database by Basho. It uses ActiveModel to provide an experience that integrates well with Rails 3 applications.

The only agent-oriented AI framework designed for Rails, where Agents are Controllers. Build AI features with less complexity using the MVC conventions you love.

A plugin for versioning Rails based RESTful APIs.

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

notifications-rails is the most powerful notification library for Rails. It offers not only simple APIs to create and render notifications but also supports user-integration and cross-platform delivery of notifications.

The prawn_rails gem provides a Prawn based view engine for creating PDFs with rails.

Remarkable Rails: collection of matchers and macros with I18n for Rails

Performance profiling for your Rails app, made simple

Official Vault plugin for Rails

Prototype, Scriptaculous, and RJS for Ruby on Rails

Barista provides simple, integrated support for CoffeeScript in Rack and Rails applications. Much like Compass does for Sass, It also provides Frameworks (bundleable code which can be shared via Gems). Lastly, it also provides a Rack Application (which can be used to server compiled code), a ar...

Adds multi themes support to your Rails 3/4 application

commonthread-rails is a collection of things that make rails development better for us. It includes date formats, monkey patches to String, Array and NilClass to make things nicer. An Encrypter using blowfish. Also, some rails filters

Proxy release, copy of master branch on 7-21-2011. Sunspot::Rails is an extension to the Sunspot library for Solr search. Sunspot::Rails adds integration between Sunspot and ActiveRecord, including defining search and indexing related methods on ActiveRecord models themselves, running a Suns...

Sunspot::Rails is an extension to the Sunspot library for Solr search. Sunspot::Rails adds integration between Sunspot and ActiveRecord, including defining search and indexing related methods on ActiveRecord models themselves, running a Sunspot-compatible Solr instance for development and test en...

http://www.engineyard.com/blog/2010/extending-rails-3-with-railties/ http://www.igvita.com/2010/08/04/rails-3-internals-railtie-creating-plugins/ h1. Morning Glory Morning Glory is comprised of a rake task and helper methods that manages the deployment of static assets into an Amazon CloudFron...

Code metrics from Flog, Flay, Saikuro, Churn, Reek, Roodi, Code Statistics, and Rails Best Practices. (and optionally RCov)

Configurable, but assumes a conservative strategy by default with a goal to solve many search engine index problems: multiple hostnames, inbound links with arbitrary parameters, trailing slashes.

A beautiful WYSIWYG editor with image uploads for Rails.

Serve is a small Rack-based web server that makes it easy to serve ERB or HAML from any directory. Serve is an ideal tool for building HTML prototypes of Rails applications. Serve can also handle SASS, Textile, and Markdown if the appropriate gems are installed.