It's as easy as: rails g fake posts -n 50

An rails plugin that provides a fake framework to stub 3-party redirect page such as payment or oauth login.

Falconer Event Endpoint for Ruby and Rack

Fancybox3.

A small library to count things. Use Redis, Memory, or bring your own storage!

Create fancy tables which are semantic HTML5, are easy tostyle, and are beautiful.

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

A high-performance C extension that tracks which Ruby source files are executed during test runs, enabling test impact analysis.

FastExists drastically reduces database lookups in Ruby on Rails applications by utilizing thread-safe probabilistic filters (Bloom Filters, Cuckoo Filters, HyperLogLog) while preserving the database as the single source of truth.

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.