Easy file attachment management for ActiveRecord

Pagination library for Rails and other Ruby applications

Database based asynchronous priority queue system -- Extracted from Shopify

A simple ruby authentication solution.

PDF generator (from HTML) plugin for Ruby on Rails

Audited (formerly acts_as_audited) is an ORM extension that logs all changes to your Rails models.

An awesome replacement for acts_as_nested_set and better_nested_set.

Makes tests easy on the fingers and the eyes

Database backed asynchronous priority queue -- Extracted from Shopify

Sphinx/Manticore plugin for ActiveRecord/Rails

Searchlogic provides object based searching, common named scopes, and other useful tools.

Object-based searching (and more) for simply creating search forms. Not currently maintained.

NOTICE: official repository moved to https://github.com/smartinez87/exception_notification

An enterprise security extension for devise, trying to meet industrial standard security demands for web applications.

Mysqldump, writing in postgresql format

Automatically detect mobile requests from mobile devices in your Rails application.

Rails RESTful controller abstraction plugin.

Ruby API for parsing and generating ASC X12 EDI transactions

NOTICE: official repository moved to https://github.com/amerine/acts_as_tree

Easy dynamic nested fields for Rails and jQuery applications.

A collection of UI widgets for RubyOnRails

Tagging that doesn't want to be on steroids. It's skinny and happy to stay that way

NOTICE: official repository moved to https://github.com/david-kerins/auto_complete

Natural-looking Finder Queries for ActiveRecord

Adds query origin tracing to your logs.

a better version of this functionality is in rails 2.3. use that!

get the mimetype of a file directly in Ruby

Ruby on Rails plugin - CSS/JS asset bundling in 10 seconds or less!

Rails file upload implementation with jQuery-File-Upload

The WebDAV Ruby On Rails Plugin