nestegg

dnsimple-ruby

The DNSimple API client for Ruby.

has_many_booleans

This Rails plugin/gem allows you to generate virtual boolean attributes, which get saved in the database as a single bitset integer.

nagiosharder

Ruby API for scraping Nagios

chef

A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.

factory_bot_rails

Factory Bot ♥ Rails

mailman

An incoming mail processing microframework in Ruby

activeadmin

The administration framework for Ruby on Rails applications.

redwood

Simple Ruby trees

ice_cube

Ruby Date Recurrence Library - Allows easy creation of recurrence rules and fast querying

canable

Simple Ruby authorization system.

Rit

rit. is a standalone web application that allows users to edit and schedule content. Content is served up to a consuming application as a web service.

rails_upgrade

Plugin to run checks on your Rails 2.x/3.x to check for obvious upgrade points on the path to 3.0

ffaker

Faker refactored.

domainatrix

A cruel mistress that uses the public suffix domain list to dominate URLs by canonicalizing, finding the public suffix, and breaking them into their domain parts.

ipaddress

A library to handle IPv4 and IPv6 addresses in a modern and productive way.

seer

Seer is a lightweight, semantically rich wrapper for the Google Visualization API. It allows you to easily create a visualization of data in a variety of formats, including area charts, bar charts, column charts, gauges, line charts, and pie charts.

cancan

Authorization Gem for Ruby on Rails.

workling

easily do background work in rails, without commiting to a particular runner. comes with starling, bj and spawn runners.

rails_metrics

Engine for tracking various metrics related to a Rails 3 application

ancestry

Organise ActiveRecord model into a tree structure

Viewpoint

A Ruby client access library for Microsoft Exchange Web Services (EWS)

devise

Flexible authentication solution for Rails with Warden.

openid_engine

A Rails engine that provides OpenID support

warp_drive

Screw Rails Engines! Why not install a Warp Drive! Completely bundle up an ENTIRE Rails application into a gem, then load it into another application! It's that easy!

rvm

Ruby enVironment Manager (RVM)

resque

Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later.

irwi

Complete wiki plugin for Ruby on Rails

clarity

Web interface for the grep and tail -f unix tools. Useful for real-time log analysis. Remotely related to splunk

bundler

sitemap_generator

This plugin enables 'enterprise-class' Google Sitemaps to be easily generated for a Rails site as a rake task, using a simple 'Rails Routes'-like DSL. It allows you to take care of familiar Sitemap issues like: Gzip of Sitemap files, variable priority links, paging/sorting links (e.g. my_list?page=3), SSL host links (e.g. https:), Rails apps which are installed on a sub-path (e.g. example.com/blog_app/) and hidden AJAX routes. It includes a Sitemap Index file so it supports more than the standard 50,000 individual urls (up to a maximum of 2.5 billion), and pings all major search engines on completion (Google, Yahoo, MSN, Ask, SitemapWriter).