This gem allows you to create unique readable fantasy names as identifiers for your active record objects. You can also define multiple identifier columns and alternatively use a UUID or Devise.friendly_token as identifier.

A simple Rails FAQ engine powered by markdown.

Rails tools I use

Helpers for working with the Twitter Bootstraps

A facetted classification framework for digital assets.

rails model-helper to store generated content in redis, for fastaccess

Uses table duplication to speed up migrations on large tables

FastExt is a framework for creating enterprise-level application style interfaces. FastExt is released as a Ruby Gem. The gem is to be installed within a Ruby on Rails 3 application.

Sets all sqlite connections to be as performant as possible while sacrificing of data integrity.

fast_tree is an implementation of tree structure using nested sets model

Fast versioning extension for paper_trail

Using Action Mailer, gem sends all tasks from Fat Free CRM to your Wunderlist account.

Define the rules for accessing resources through a simple DSL.

Schedule emails to be sent at a later date from your Rails app.

Favorite stuff with this gem.

A dropin utility that adds favourites functionality to any object

Overrides the original pagination with the paginative gem

Faye Online user list and time count

fbcat - command-line tools for built-in football catalog (reference) dbs incl. leagues, clubs, & more

Support for sessions tied to Facebook users.