When your resque jobs are frequent and fast, the overhead of forking and running your after_fork might get too big.

Retina Rails makes your application use high-resolution images by default. It automatically optimizes uploaded images (CarrierWave or Paperclip) for retina displays by making them twice the size and reducing the quality.

A cli for generating reveal.js presentations from markdown.

A simple, usable binding to the Salesforce API.

RinRuby is a Ruby library that integrates the R interpreter in Ruby, making R's statistical routines and graphics available within Ruby. The library consists of a single Ruby script that is simple to install and does not require any special compilation or installation of R. Since the library is 1...

RModBus - free implementation of protocol ModBus

A modern fast tagging framework for Rails 3.1+

Integrates ruby-prof with RSpec, allowing you to easily profile your RSpec examples.

An ElasticSearch client with ThriftClient-like failover handling.

RuboCop for git diff.

Add support to your ruby or rails projects to Asterisk Manager Interface (AMI)

A Ruby implementation of go-identicon by Damian Gryski RubyIdenticon creates an identicon, similar to those created by Github. A title and key are used by siphash to calculate a hash value that is then used to create a visual identicon representation. The identicon is made by cr...

Ruby wrapper to Riot Games API. Maps results to full blown ruby objects.

An OData Client Library for Ruby. Use this to interact with OData services

A pure Ruby implementation of a useful subset of Prolog.

Ruby implementation of the SMPP protocol, based on EventMachine. SMPP is a protocol that allows ordinary people outside the mobile network to exchange SMS messages directly with mobile operators.

Ruby wrapper for Apache Spark

The bridge between Calabash iOS and Xcode command-line tools like instruments and simctl.

This gem makes Rails console sessions less dangerous in specified environments by warning, color-coding, auto-sandboxing, and allowing read-only external connections (disables job queueing, non-GET requests, etc.)

Saffron is a collection of sass mixins and helpers that make adding CSS3 animations and transitions much simpler. Just include a mixin in your sass declaration, then set any configuration using variables and mixin parameters.