High method and class churn has been shown to have increased bug and error rates. This gem helps you know what is changing a lot so you can do additional testing, code review, or refactoring to try to tame the volatile code.

This gem provides CodeMirror assets for your Rails application.

A ruby gem for validating credit card numbers

Array/Hash/Struct#dig backfill for ruby

GraphQL::SchemaComparator compares two GraphQL schemas given their SDL and returns a list of changes.

manage jar dependencies for gems and keep track which jar was already loaded using maven artifact coordinates. it warns on version conflicts and loads only ONE jar assuming the first one is compatible to the second one otherwise your project needs to lock down the right version by providing a Jar...

Until there is a Kindle API, this will suffice.

Simple Rails & AWS Lambda Integration using Rack and various utilities.

Simplify deployment of your Puppet infrastructure by automatically pulling in modules from the forge and git repositories with a single command.

Simple Random Number Generator including Beta, Cauchy, Chi square, Exponential, Gamma, Inverse Gamma, Laplace (double exponential), Normal, Student t, Uniform, and Weibull. Ported from John D. Cook's C# Code.

SSRF Proxy is a multi-threaded HTTP proxy server designed to tunnel client HTTP traffic through HTTP servers vulnerable to HTTP Server-Side Request Forgery (SSRF).

Distributed locks (mutexes & semaphores) using Memcached or Redis.

ThumbsUp provides dead-simple voting capabilities to ActiveRecord models with karma calculation, a la stackoverflow.com.

A scalable XMPP chat server.

Program in YAML — Code is Data

Testing utils for Action Cable

URI class for parsing data URIs

A Ruby gem. For emoji. For everyone. :heart:

Documentation measurement tool for Ruby, based on YARD.

A ruby, zero-dependency, super small version of IP2Location LITE country lookups