A Ruby wrapper for the OAuth 2.0 protocol.
A Slate plugin to wrap a custom block component around the selected block by condition.
A Ruby interface to the Twitter API.
A React framework for building text editors.
An acts_as_sortable/acts_as_list replacement built for Rails 3 & 4
Debugging toolbar for Rack applications implemented as middleware
iOS-based charting library for both line and bar graphs.
Easily find bottlenecks in your Ruby code. A ruby-prof printer that prints fold stacks compatible with FlameGraph
Take care of pesky code reviews with a trusty Hound.
Ruby wrapper for the Jawbone UP API
Tools of The Trade, from Hacker News.
Role management library with resource scoping
Simple Rails 3.1+ gem for better timezone detection
A simple, Git-powered wiki with a sweet API and local frontend.
Grit gives you object oriented read/write access to Git repositories via Ruby.
The best Rails 3.1 and Rails 3.2 forum engine. Ever.