Parse CSS and add vendor prefixes to CSS rules using values from the Can I Use website.

FastImage finds the size or type of an image given its uri by fetching as little as needed.

Build command-suite CLI apps that are awesome. Bootstrap your app, add commands, options and documentation while maintaining a well-tested idiomatic command-line app

Evented IO for Celluloid actors

Do some browser detection with Ruby.

A Rails form builder plugin/gem with semantically rich and accessible markup

Freelancer is a one page Bootstrap portfolio theme for freelancers.

An interactive way to learn git.

OAuth Core Ruby implementation

A Ruby library for carefully refactoring critical paths

Changelog generation has never been so easy. Fully automate changelog generation - this gem generate changelog file based on tags, issues and merged pull requests from GitHub.

A fast, open source text processor and publishing toolchain for converting AsciiDoc content to HTML 5, DocBook 5, and other formats.

Namespaced Rack::Session, Rack::Cache, I18n and cache Redis stores for Ruby web frameworks.

Xcodebuild formatter designed to be piped with `xcodebuild`, and thus keeping 100% compatibility. It has modes for CI, running tests (RSpec dot-style), and it can also mine Bitcoins.

Extraction of the JSON parsing tools shared between a number of providers in the 'fog' gem.

ActiveModel/Record integrations for Elasticsearch.

This CLAide plugin shows information about all available CLAide plugins (yes, this is very meta!). This plugin adds the "plugins" subcommand to a binary so that you can list all plugins (registered...

Draper adds an object-oriented layer of presentation logic to your Rails apps.

Unaccent replaces a string's accented characters with unaccented characters

Wicked PDF uses the shell utility wkhtmltopdf to serve a PDF file to a user from HTML. In other words, rather than dealing with a PDF generation DSL of some sort, you simply write an HTML view as you would normally, and let Wicked take care of the hard stuff.