As of version 0.6.0, only Microsoft Excel compatible spreadsheets are supported

This library provides integration of RubyMoney - Money gem with Rails

Easily test email in RSpec, Cucumber, and MiniTest

Easily test email in RSpec, Cucumber, and MiniTest

Light weight job scheduling on top of Resque. Adds methods enqueue_at/enqueue_in to schedule jobs in the future. Also supports queueing jobs on a fixed, cron-like schedule.

This library uses ANSI escape sequences to control the attributes of terminal output

A library to read/write files/spreadsheets in Google Drive/Docs.

A Ruby DSL builder for Elasticsearch

A gem that provides text handling for Twitter

Filter plugin for modifying event record

Easy activity tracking for your ActiveRecord models. Provides Activity model with details about actions performed by your users, like adding comments, responding etc.

Fluentd Output filter plugin. It has designed to rewrite tag like mod_rewrite. Re-emmit a record with rewrited tag when a value matches/unmatches with the regular expression. Also you can change a tag from apache log by domain, status-code(ex. 500 error), user-agent, request-uri, regex-backreference and so on with regular expression.

Ruby/Graphviz provides an interface to layout and generate images of directed graphs in a variety of formats (PostScript, PNG, etc.) using GraphViz.

Geokit provides geocoding and distance calculation in an easy-to-use API

Use Fake S3 to test basic Amazon S3 functionality without actually connecting to AWS

A collection of Ruby methods to deal with statutory and other holidays. You deserve a holiday!

Power Assert shows each value of variables and method calls in the expression. It is useful for testing, providing which value wasn't correct when the condition is not satisfied.

Some [hopefully] useful extensions to Ruby's String class. Stringex is made up of three libraries: ActsAsUrl [permalink solution with better character translation], Unidecoder [Unicode to ASCII transliteration], and StringExtensions [miscellaneous helper methods for the String class].

Wicked is a Rails engine for producing easy wizard controllers

Ruby/Git is a Ruby library that can be used to create, read and manipulate Git repositories by wrapping system calls to the git binary.