OCRA (One-Click Ruby Application) builds Windows executables from Ruby source code. The executable is a self-extracting, self-running executable that contains the Ruby interpreter, your source code and any additionally needed ruby libraries or DLL.

Rails performance tests (removed from core in Rails 4.0)

Routing filters wraps around the complex beast that the Rails routing system is, allowing for unseen flexibility and power in Rails URL recognition and generation.

Microsoft Azure Storage Table Client Library for Ruby

A pure-Ruby Protocol Buffers library

A prototype of the Bloom distributed programming language as a Ruby DSL.

Decorators on top of your ORM layer.

Filter plugin to add Kubernetes metadata

Filter plugin to add Kubernetes metadata

random Japanese name and address generator

google-ads-googleads is a Google Ads API client library for Ruby

Use the GraphiQL IDE for GraphQL with Ruby on Rails. This gem includes an engine, a controller and a view for integrating GraphiQL with your app.

Tool for loading and writing Java properties files

Jekyll Picture Tag adds responsive images to your Jekyll static site. It automatically creates resized source images, is fully configurable, and covers all use cases, including art direction and resolution switching, with a little YAML configuration and a simple template tag.

Use libsass with Ruby!

Simple Ruby rate limiting mechanism.

CSS toolkit from Twitter For Rails 3.1+ Asset Pipeline. Best one of all!

Integrates ServiceWorker into the Rails asset pipeline.

See history about your workers (GSoC project)

Code Obscure Tool.You can use it simplely