A gem that calculates the exchange rate using published rates from open-exchange-rates. Compatible with the money gem.

Fine grained concurrency for Ruby

Ruby Stats is a port of the statistics libraries from PHPMath. Probability distributions include binomial, beta, and normal distributions with PDF, CDF and inverse CDF as well as Fisher's Exact Test.

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.

Statsig server SDK for feature gates and experimentation in Ruby

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

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.

A scalable XMPP chat server.

Simple WebSocket Client for Ruby

Data analysis and OSINT framework for Twitter

URI class for parsing data URIs

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

Define methods for accessing translated attributes

Godmin is an admin framework for Rails 5+. Use it to build dedicated admin sections for your apps, or stand alone admin apps such as internal tools.

Extract as much much detail as you want from GraphQL queries, served up from your Ruby app and the `graphql` gem. Compatible with the `graphql-batch` gem, to extract batch-loaded fields resolution timings.

Ruby wrapper for hiredis (protocol serialization/deserialization and blocking I/O)

Put your html on a diet

Documentation measurement tool for Ruby, based on YARD.

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