Visualise dependencies between your application and it's Packwerk packages using Graphviz.

An easy to use interface for REST APIs that use HAL.

Allows you to define a phase on Active Record migrations and provides rake tasks for running only migrations tagged with a certain phase

Converter utils that can be included as a gem or used from the command line

Simple way to manage feature rollout / flipping

Linearly scale Heroku dyno counts based on sampled metrics

Tmux scripting made easy

Provides a command-line tool that generates Java, Python or Ruby code to run the tests.

Native Ruby ID3 tag reader that aims for 100% coverage of ID3v2.x and ID3v1.x standards

A ruby client for Cloudera's Impala

A library for parsing equations into an abstract syntax tree for evaluation

Manage your Amazon Kindle highlights: Sync and cache to an ActiveRecord database and output in various formats

Ruby Gem to interact with the Labelary.com ZPL Web Service

Tools for creating step-by-step programming tutorials

Liza is a light, experimental framework primarily developed to help study the Ruby language and the Ruby ecosystem.

Put your financial application logs to work with logstash FIX filtering

MagicLamp provides an easy way to get your Rails templates into your JavaScript specs.

Easily sync your certificates and profiles across your team using git

matplotlib wrapper for Ruby

Mayu Live is a live updating server side VirtualDOM framework for Ruby, inspired by modern frontend tools that exist in the JavaScript ecosystem.