1. AegisComplete authorization solution for Rails that supports roles and a RESTish, resource-style declaration of permission rules.
2. Query dietA Rails database query counter that stays out of your way
7. DusenComprehensive search solution for ActiveRecord and MySQL.
8. Mail magnetMail Magnet allows you to override e-mail recipients in ActionMailer so all mails go to a given address. This library is UNMAINTAINED. Use the official ActionMailer::Base.register_interceptor API instead: https://makandracards.com/makandra/46094-rails-how-to-write-custom-email-interceptors
10. ConsulScope-based authorization for Ruby on Rails.
12. cucumber spinnerProgress bar formatter for cucumber. Shows failing scenarios immediately and can automatically show the error page in the browser.
13. minidusenLow-tech search for ActiveRecord with MySQL or PostgreSQL
14. geordiCollection of command line tools used in our daily work with Ruby, Rails and Linux.
16. superclampCross-browser ellipsis on multi-line texts. Optimized for performance, and supports tags inside clamped element. Even looks better than -webkit-clamp. Supports all real browsers and IE11+.