A really straightforward open source Ruby on Rails portfolio plugin designed for integration with RefineryCMS.

jQuery Popup Overlay: jQuery plugin for responsive and accessible modal windows and tooltips

A simple Rails blog engine powered by markdown.

Rails caching with an RDBMS backend. Also a key/value store with a Redis compatible interface backed by an RDBMS.

Rubygem to easily add Postmark Bounce notifications to your Rails app

Form and Presenter libraries for interfacing the public with Rails

Creates scaffolds for Twitter Bootstrap with generated RSpec coverage

Tools and library for integrating Power Reviews into a rails website.

Adds a preload_pluck method to ActiveRecord that allows querying using Rails 4 preload-style eager loading, and return a 2-dimensional array without ActiveRecord model creation overhead.

Power of Friendship is a friendship library for Rails' Active Records. It allows you to add Facebook style friendships and/or Twitter style followers to any model.

Rails generator for semi-static pages (like "about us", "disclamer" etc.)

A gem to avoid repitition in your rails routes file

Praetorian makes duplicating user management features a breeze for any rails application. It includes a restful user model to authenticate against, remember user, reset password and authorization permissions for controller actions and model attributes.

An extension to PrawnRails, making form layouts easier.

A simple presenter pattern for ruby. It can work in rails.

Prelaunch allows you to restrict access to the Rails app while it is still in development.

M18nRails

Presume is the only open-source Applicant Tracking System technology for Ruby-on-Rails developers. It works for parsing resumes into the CVSTOM.org resume format, Section >> Header >> Bullets. It then takes an intake of skills or positions, and the minimum experience duration for each...

Rails 3 Validator, that prevents attributes from being changed to a blank value once they're present.

Plugin to add dropin support for Prevoty's content filter and SQL analysis.