Mailcheck.js for Rails'

The manbook command can be used to produce an eBook from one or more man pages.

Ruby gem for interacting with the Mandrill API.

Rails 3.1 engine that allows you to integrate the markItUp editor into the asset pipeline

Ruby Marvel Comics API library

Explore the Marvel Universe like never before.

Send Mandrill template emails

Basic implementation of the Mastercoin protocol.

A gem that allows you register media types and unmarshal/marshal data accordingly

It is a very simple Rails plugin to help you customize your pages' meta tags a little bit easier.

A low-drama portfolio generator for your middleman site.

Milkmaid is a command-line client for Remember the Milk

A collection of assertions for use with minitest and activerecord. Simplifies testing associations and validations by introspecting associations and validations for you models.

Patches MiniTest to allow for an easily configurable output. For Ruby 1.9 :Datches MiniTest to allow for an easily configurable output. For Ruby 1.9 :D. Inspired by leftright, redgreen and other test output gems, with an emphasis on configuration and style

Machine learning library in Ruby

Mobi is a Rubygem that allows you to easily read MOBI e-book format metadata.

Modesty is simple and scalable split testing and event tracking framework. It was inspired by assaf's Vanity (github.com/assaf/vanity).

Makes it easy to use money with mongoid

MongoHydrator takes a document, represented as a Ruby Hash, and efficiently updates it so that embedded references to MongoDB documents are replaced with their corresponding subdocuments.

mongoid plugins