All sorts of useful information about every country packaged as convenient little country objects. It includes data from ISO 3166 (countries and states/subdivisions ), ISO 4217 (currency), and E.16…

A fast background processing framework for Ruby and RabbitMQ

Generates attr_accessors that encrypt and decrypt attributes

The PDF::Reader library implements a PDF parser conforming as much as possible to the PDF specification from Adobe.

Lightweight job scheduler extension for Sidekiq

A mini view framework for console/irb that's easy to use, even while under its influence. Console goodies include a no-wrap table, auto-pager, tree and menu.

Generic connection pooling for Ruby

Adds additional postgres functionality to an ActiveRecord / Rails application

A fast JSON:API serializer for Ruby (fork of Netflix/fast_jsonapi)

Debugging functionality for Ruby

Work with JSON-backed attributes as ActiveRecord-ish models

Data Analysis in RUby

A more helpful way to view differences between complex data structures in RSpec.

Stylish Graph APIs

Use Hotwire in your Ruby on Rails app

A small PEG based parser library. See the Hacking page in the Wiki as well.

Log outgoing HTTP requests in ruby

Use simple commands on the server to control client browsers in real-time

Redlock is a redis-based distributed lock implementation in Ruby. More than 20M downloads.

🐑🛤 Simple Rails & AWS Lambda Integration

🐊 Run processes in the background (and foreground) on Mac & Linux from a Procfile (for production and/or development environments)

Pragmatic Segmenter is a rule-based sentence boundary detection gem that works out-of-the-box across many languages.

Active Record's Session Store extracted from Rails

JIT for Ruby that is written in Ruby

Mime type detection in ruby via file extension or file content

An Emacs-like text editor written in Ruby

Google Play Android App store scraper

Ruby's missing background and batch processing system

Rails support via ActionMailer

Sublime Text 2 & 3 Plugin to Beautify Ruby