git-pr-release creates a pull request which summarizes feature branches that are to be released into production

Guard::Minitest automatically run your tests with Minitest framework (much like autotest)

Compile Haml CoffeeScript templates in the Rails asset pipeline.

Ruby library to work with HTTP archives

ISO8601 is a simple implementation in Ruby of the ISO 8601 (Data elements and interchange formats - Information interchange - Representation of dates and times) standard.

A gem to provide easy switching between different JSON backends, including Oj, Yajl, the JSON gem (with C-extensions), the pure-Ruby JSON gem, and OkJson.

Declarative SAX Parsing with Nokogiri, Ox or Oga

Draw various frames and boxes in the terminal window.

This gem creates a scope for unread objects and adds methods to mark objects as read

APN on Rails is a Ruby on Rails gem that allows you to easily add Apple Push Notification (iPhone) support to your Rails application.

This gem can be useful, if you need to upload files to your API from mobile devises.

An object model for CloudFormation templates

Chroma is a color manipulation and palette generation gem.

Test your Rails Engines without needing a full Rails app

A Rubyesque interface to Gmail, with all the tools you will need. Search, read and send multipart emails; archive, mark as read/unread, delete emails; and manage labels.

A ruby implementation of RFC5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF). The goal of HKDF is to take some source key material and generate suitable cryptographic keys from it.

Measure following file dimensions: apng, avif, bmp, cur, emf, gif, heic, heif, icns, ico, j2c, jp2, jpeg, jpx, mng, pam, pbm, pcx, pgm, png, ppm, psd, svg, swf, tiff, webp, xbm, xpm

NATS is an open-source, high-performance, lightweight cloud messaging system.

A LinkedIn OAuth2 strategy for OmniAuth.

Distrubuted mutex using Redis