redis_failover is a ZooKeeper-based automatic master/slave failover solution for Ruby

Regexp#examples returns a list of "all" strings that are matched by the regex. Regexp#random_example returns one, random string that matches.

SQL databases support for ROM

A simple library to parse and generate HL7 2.x messages

ruby-prof printer that exports to fold stacks compatible with FlameGraph

scanf is an implementation of the C function scanf(3).

Scoped search makes it easy to search your ActiveRecord-based models. It will create a named scope :search_for that can be called with a query string. It will build an SQL query using the provided query string and a definition that specifies on what fields to search. Because the func...

This plugin provides native memory instrumentation for monitoring and metrics collection, including: memory usage via `free` and `vmstat`, including metrics. Note that this plugin may have cross-platform iss...

This plugin provides native process instrumentation for monitoring and metrics collection, including: process status, uptime, thread count, and others

A simple sentiment analysis gem

Sequent is a CQRS and event sourcing framework for Ruby.

Define dependency graphs of Sidekiq jobs

Add reflection on ActiveModel dynamic attributes that will be created at runtime

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.

Task 3

This gem provides a graphical frontend for the Taskwarrior task manager. It is based on Sinatra.

Create temporary table-backed ActiveRecord models for use in tests

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

This gem identifies valid tracking numbers and the service they're associated with. It can also tell you a little bit about the package purely from the number—there's quite a bit of info tucked away into those numbers, it turns out.