aasm

abstract

Library which enable you to define abstract method in Ruby.

actionmailer

Framework for designing email-service layers

actionpack

Eases web-request routing, handling, and response.

actionview

activeldap

activemodel

activerecord

Implements the ActiveRecord pattern (Fowler, PoEAA) for ORM

activerecord-deprecated_finders

activeresource

Think Active Record for web resources..

activesupport

Utility Classes and Extension to the Standard Library

active_model_serializers

active_reload

acts-as-taggable-on

acts_as_list

Capabilities for sorting and reordering a number of objects in a list.

acts_as_versioned

addressable

A replacement for the URI implementation that is part of Ruby's standard library.

adhearsion

'Adhesion you can hear' for integrating VoIP

adhearsion-loquacious

ae

afm

akismet

allison

A modern, pretty RDoc template.

amatch

A template library for ruby like amrita

amazon-ec2

Amazon Web Services Elastic Compute Cloud (EC2) Ruby Gem

ammeter

amq-client

amq-protocol

amqp

amrita2

Amrita2 is a xml/xhtml template library for Ruby.

animation

annoy

Like your annoying friend that asks you questions all the time

ansi

apache_log_parser

apetag

api-versions

appraisal

arachni-rpc

arachni-rpc-em

archive-tar-minitar

Provides POSIX tarchive management from Ruby programs.

arel

ascii85

Methods for encoding/decoding Adobe's binary-to-text encoding of the same name.

asciidoctor

ast

async_sinatra

Asynchronous response API for Sinatra and Thin

atomic

attic

A place for Ruby objects to hide instance variables

authlogic

A clean, simple, and unobtrusive ruby authentication solution.

authlogic-oid

Extension of the Authlogic library to add OpenID support.

autotest-rails

This is an autotest plugin to provide rails support.

avl_tree

awesome_nested_set

awesome_print

aws-s3

Amazon Web Services Elastic Compute Cloud (EC2) Ruby Gem

aws-sdb

Amazon Web Services Elastic Compute Cloud (EC2) Ruby Gem

aws-sdk

aws-ses

backports

bacon

Small RSpec clone weighing less than 350 LoC

barby

bcat

bcrypt-ruby

beanstalk-client

This is a Ruby client library for the Beanstalk protocol.

best_in_place

bitescript

BiteScript is a Ruby DSL for generating Java bytecode and classes.

blankslate

blockenspiel

bluecloth

A Ruby implementation of Markdown

bones

Tool that creates new Ruby projects from a code skeleton

bouncy-castle-java

bourne

brass

breakpoint

bsearch

bson

buftok

builder

A builder to facilitate programatic generation of XML markup

bundler

An easy way to vendor gem dependencies

bunny

cache_digests

caesars

Rapid DSL prototyping in Ruby.

calendar_date_select

A popular and flexible JavaScript DatePicker for RubyOnRails

calendar_helper

camping

A web microframework inspired by Ruby on Rails.

canny

Canny is a template library for Ruby.

capistrano

A distributed application deployment system

capybara

carrierwave

celluloid

celluloid-io

cerberus

Continuous Integration tool for ruby projects

CFPropertyList

cgikit

CGIKit is a web application framework written in Ruby. The architecture is similar to WebObjects

charlock_holmes

chef-zero

childlabor

childprocess

chronic

A pure Ruby natural language date parser.

chunky_png

clamp

classifier

climate_control

cliver

cmdparse

Advanced command line parser supporting commands

cocaine

coderay

A Ruby library for syntax highlighting.

code_analyzer

coffee-rails

coffee-script

coffee-script-source

color

Colour management with Ruby

color-tools

Ruby library to provide RGB and CMYK colour support.

colorator

colored

colorize

columnize

Sorts an array in column order.

combustion

commander

compass

compass-core

compass-import-once

compass-rails

configliere

configuration

Pure ruby scoped configuration files

connection_pool

contest

cookiejar

coolio

cora

countdownlatch

crack

creole

cri

crxmake

css_parser

curb

Ruby-language bindings for libcurl

d3_rails

daemons

Wrap existing ruby scripts to be run as a daemon

daemon_controller

dalli

database_cleaner

A set of strategies for cleaning your database in Ruby.

datamapper

data_objects

The Core DataObjects class

date_validator

dbf

debugger-linecache

declarative_authorization

deep_merge

default_value_for

delayer

delocalize

deprecated

A Ruby library for handling deprecated code

dep_selector

descendants_tracker

devise

diff

diff-lcs

Use the McIlroy-Hunt LCS algorithm to compute differences

directory_watcher

dirty-memoize

distribution

dm-aggregates

DataMapper plugin providing support for aggregates, functions on collections and datasets

dm-constraints

dm-core

An Object/Relational Mapper for Ruby

dm-do-adapter

dm-migrations

DataMapper plugin for writing and specing migrations

dm-serializer

dm-sqlite-adapter

dm-timestamps

DataMapper plugin for magic timestamps

dm-transactions

dm-types

DataMapper plugin providing extra data types

dm-validations

DataMApper plugin for performing validations

dnsruby

A pure Ruby DNS client library

docile

documatic

domain_name

dotenv

dotenv-deployment

do_sqlite3

A DataObjects driver for SQLite3

draper

drydock

DSL for building really powerful command line applications.

duby

Customizable typed programming language with Ruby-inspired syntax.

dust

Descriptive block syntax definition for Test::Unit.

echoe

Packaging tool that provides Rake tasks for common operations

edn

em-http-request

em-synchrony

em-websocket

enumerize

equalizer

erubis

Erubis is an implementation of eRuby

eruby

eRuby interprets a Ruby code embedded text file

escape_utils

ethon

evented-spec

eventmachine

Ruby/EventMachine is a fast, simple event-processing library for Ruby programs.

exception_notification

excon

execjs

exifr

A library to read EXIF info from JPEG and TIFF images.

expression_parser

extendmatrix

extensions

Extensions to the standard Ruby library

extlib

Support library for DataMapper and Merb

facebooker

facets

facter

A cross-platform Ruby library for retrieving facts from operating systems

factory_girl

fakefs

A fake filesystem. Use it in your tests.

fakeweb

Helper for faking web requests in Ruby

faraday

HTTP/REST API client library with pluggable components

faraday_middleware

fast-stemmer

fastthread

Optimized replacement for thread.rb primitives

fast_gettext

fast_xs

fast_xs provides C extensions for escaping text

fattr

fattr.rb is a "fatter attr" for ruby.

fcgi

feed_parser

ferret

a high-performance, full-featured text search engine library

ffaker

ffi

Ruby extension for programmatically loading dynamic libraries

ffi-rzmq

ffi-rzmq-core

file-tail

fivemat

fix_microsoft_links

flacinfo-rb

flay

Flay analyzes code for structural similarities.

flexmock

Simple mock object library for Ruby unit testing

flickr

An insanely easy interface to the Flickr photo-sharing service.

flickraw

flog

Flog reports the most tortured code in an easy to read pain report.

fog

foreman

forgery

formatador

formatize

formtastic

fssm

fusefs

Define file systems right in Ruby

fxruby

Ruby language binding to the FOX GUI toolkit

gelf

gelfd

gemcutter

Add commands to gem for gemcutter.org operations

gemoji

gem_plugin

A plugin system based only on rubygems that uses dependencies only.

geocoder

geoip

GeoRuby

gettext_i18n_rails

gherkin

gibbler

Git-like hashes for Ruby objects

gimp-ruby

git

git-pivotal-tracker-integration

github-linguist

github-markdown

github-markup

github_api

gitlab-gollum-lib

gitlab-grack

gitlab-grit

gitlab_git

gitlab_omniauth-ldap

gloc

Localization library for ruby and/or rails.

gnuplot

god

Ruby monitoring framework which replaces monit

googlecharts

grape

grape-entity

gratr19

grb

grit

Grit gives you object oriented read/write access to Git repositories via Ruby.

gruff

A ruby library for creating pretty graphs and charts

guard

guard-rspec

haml

HAML - a ruby web page templating engine

haml-rails

hanna

RDoc implemented in Haml, making its source clean and maintainable

happymapper

Object to xml mapping library.

hashery

hashie

Hashie is a small collection of tools that make hashes more powerful.

hashr

has_many_polymorphs

heredoc_unindent

hexoid

hiera

highline

highrise

hike

hipchat

hitimes

hoe

Hoe extends rake to provide full project automation.

hoe-seattlerb

Hoe plugins providing tasks used by seattle.rb

hpricot

A fast and liberal HTML parser for Ruby.

htmlentities

A simple library for encoding/decoding entities in (X)HTML documents.

httmultiparty

http

http-cookie

httparty

Makes http fun! Also, makes consuming restful web services dead easy.

httpauth

httpclient

http_configuration

http_parser

http_parser_rb

htty

i18n

icalendar

This library provides iCalendar support for ruby. (RFC-2445)

imagesize

imlib2-ruby

Imlib2 bindings for Ruby, written with the help of these people.

inifile

inline_attachment

innate

Simple, straight-forward base for web-frameworks.

innertube

instantiator

introspection

IO-Reactor

IO Reactor for event-driven multiplexed IO in a single thread

iobuffer

IO::Buffer is a fast byte queue which is primarily intended for non-blocking I/O applications

ipaddress

isolate

jabber4r

A Jabber library in pure Ruby

jbox-gitolite

jeweler

General Ruby extensions serving DataMapper and DataObjects

joiner

journey

jquery-rails

jquery-ui-rails

jruby-openssl

A Ruby SSL library that works with JRuby

jsmin

json

A JSON implementation as a Ruby extension.

json_pure

JSON implementation for Ruby

jwt

kaminari

kirbybase

A simple Ruby DBMS that stores data in plaintext files.

kissfft

knife-dsl

kramdown

krb5-auth

kwaff

Kwaff is a simplified and structured data format for XML target

kwalify

kwartz-ruby

HTML templete system which realized the concept 'Separation of Presentation Logic and Presentation Data'(SoPL/PD)

langscan

LangScan is a program analyzer for source code search engine.

launchy

lemon

letter_opener

levenshtein

librex

librmpd

Ruby library for communicating with an MPD server

libxml

linecache

Caches files as might be used in a debugger or a tool that works with sets of Ruby source files.

linkedin

liquid

listen

litc

A tiny ruby module for Amazon EC2 intance metadata

literati

little-plugger

Module that provides Gem based plugin management

locale

lockfile

nfs safe lockfile creation

log4r

Log4r is a comprehensive and flexible logging library written in Ruby for use in Ruby programs.

logging

logue

log_buddy

loquacious

Descriptive configuration files for Ruby written in Ruby

lumberjack

mab

macaddr

magic

mail

map

maruku

A Markdown-superset interpreter written in Ruby.

mash

Mash is an extended Hash that gives simple pseudo-object functionality.

matchy

RSpec-esque matchers for use in Test::Unit

mecab-ruby

Ruby binding for MeCab

mechanize

A Ruby library used for automating interaction with websites.

mega-modules

Ruby's Massive Class Collection

memcache-client

memoizable

memoize

merb-assets

Merb plugin that provides the helpers for assets and asset bundling

merb-core

The core of Merb, a lightweight, fast Ruby MVC framework

merb-haml

Merb plugin that provides HAML support

merb-helpers

Merb plugin providing various view helpers

merb-param-protection

Merb plugin providing methods to filter parameters

merb-slices

A Merb plugin for creating modularized applications

mercenary

metaclass

metaid

An aid to Ruby metaprogramming

metasploit_data_models

meterpreter_bins

method_source

metric_fu

A set of rake tasks that make it easy to generate metrics reports.

metriks

middleware

mime-types

mimemagic

ming-ruby

Ming/Ruby is a Ruby extensional library for Ming

minitest

minitest/unit is a small and fast replacement for ruby's huge and slow test/unit.

mini_exiftool

wrapper for exiftool

mini_magick

Manipulate images with minimal use of memory.

mini_portile

mini_shoulda

mixlib-authentication

mixlib-cli

mixlib-config

mixlib-log

mixlib-shellout

mocha

A Ruby library for mocking and stubbing using a syntax like that of JMock, and SchMock

modernizr

modular-scale

moneta

money

This library aids one in handling money and different currencies.

mongo

mongoid

mp3taglib

mp3taglib is a id3v1/id3v2 mp3 tagging library for ruby

mp4info

mpd-rb

Ruby class for communicating with an MPD server

mruby

msfrpc-client

msgpack

multipart-post

multi_json

multi_test

multi_xml

murmurhash3

mustache

mysql-ruby

A Ruby extension library to use MySQL

mysql2

nagios

nagios_analyzer

nano-methods

Ruby's Atomic Library

narray

Numerical N-dimensional Array class

naught

ncursesw-ruby

needle

Dependency injection for Ruby

nested_form

net-dns

net-geoip

Ruby bindings for the GeoIP library

net-http-digest_auth

net-http-persistent

net-scp

net-sftp

net-ssh

net-ssh-gateway

A simple library to assist in enabling tunneled Net::SSH connections

net-ssh-multi

Net::SSH::Multi is a library for controlling multiple Net::SSH connections via a single interface.

netrc

network_interface

net_dav

niceogiri

nio4r

nokogiri

Nokogiri is an HTML, XML, SAX, and Reader parser.

nokogiri-diff

nokogiri-happymapper

nora

Nora - ruby libraries for web application library

notify

ntlm-http

oauth

A RubyGem for implementing both OAuth clients and servers.

oauth-plugin

oauth2

Ruby wrapper for the OAuth 2.0 protocol built with a similar style to the original OAuth gem.

ohai

oj

omniauth

omniauth-github

omniauth-google-oauth2

omniauth-oauth

omniauth-oauth2

omniauth-twitter

open4

Open3::popen3 with exit status

open_id_authentication

optiflag

org-ruby

origin

orm_adapter

osmlib-base

A ruby library for OpenStreetMap.

ox

packetfu

paint

paper_trail

parseconfig

parser

parslet

patron

paypal

Library aiding with Paypal IPN from web applications.

pcaprub

pdf-core

pdf-inspector

A collection of PDF::Reader based analysis classes for inspecting PDF output

pdf-reader

PDF parser conforming as much as possible to the PDF specification from Adobe

permutation

pg

Ruby extension library providing an API to PostgreSQL

piston

A Rails utility that uses Subversion to manage local copies of upstream vendor branches.

pivotal-tracker

Ruby gem that provides an AR-style interface for the Pivotal Tracker API.

pkg-config

plist

A library to manipulate Property List files, also known as plists

plruby

plruby language for PostgreSQL

plugman

png

podcast

A pure Ruby library for generating podcasts from mp3 files

poltergeist

polyglot

pony

posix-spawn

powerpack

prawn

Fast, Nimble PDF Generation For Ruby

prawn-core

Fast, Nimble PDF Generation For Ruby

prawn-layout

An extension to Prawn offering table support, grid layouts and other things

prawn-security

Popular Password Protection & Permissions for Prawn PDFs

priorityqueue

programming-ruby

Programming Ruby: The Pragmatic Programmers' Guide by Dave Thomas and Andrew Hunt

protected_attributes

pry

psych

puma

pygments_rb

pyu-ruby-sasl

qed

quixml

A fast Ruby XML API written in C with pretty-printing, entity en-/decoding, marshalling and regex addressing.

racc

A LALR(1) parser generator for Ruby

rack

A modular Ruby webserver interface

rack-accept

rack-attack

rack-cache

rack-contrib

rack-mount

rack-openid

Provides a more HTTPish API around the ruby-openid library.

rack-protection

rack-ssl

rack-test

Rack::Test is a small, simple testing API for Rack apps.

radius

Powerful tag-based template system.

ragol

railroady

rails

ruby on rails is a web-application and persistance framework

rails-acts_as_tree

Rails ActsAsTree plugin

rails-acts_as_versioned

Rails ActsAsVersioned plugin

rails-app-installer

rails-engines

The Rails Engines plugin

rails-observers

rails_autolink

rails_best_practices

railties

rainbow

rake

Make-like scripting in Ruby

rake-compiler

Provide a standard and simplified way to build and package Ruby extensions

rake-remote_task

ramaze

Ramaze is a simple and modular web framework.

rantly

rash

rb-gsl

rb-inotify

rb-readline

rbbr

Ruby Browser for modules/classes hierarchy and their constants and methods

rbstaff

rbtree

Ruby/RBTree module.

rbwebkitgtk

rcairo

Ruby bindings for cairo

rchardet19

rcsparse

RCS parsing library for Ruby

rdiscount

rdoc

An extended version of the RDoc library from Ruby 1.8

rdtool

A multipurpose documentation format for Ruby

realrand

Generate real random numbers in Ruby.

redcarpet

redcloth

A module for using Textile in Ruby

redgreen

A wrapper to support colored output with test/unit.

redis

redis-actionpack

redis-activesupport

redis-namespace

redis-rack

redis-rails

redis-store

reek

A tool that examines Ruby classes, modules and methods and reports any code smells it finds.

refe

ReFe is an interactive reference for Japanese Ruby manual

request-log-analyzer

request_store

require_all

require_relative

responds_to_parent

Adds responds_to_parent to your controller to respond to the parent document of your page.

rest-client

A simple HTTP and REST client for Ruby.

rev

Modern continuous testing (flexible alternative to Autotest)

rexical

Rexical is a lexical scanner generator

rflickr

A Ruby implementation of the Flickr API.

rgen

riddle

An interface to the Sphinx search daemon.

riel

right_aws

A robust, fast, and secure interface to Amazon EC2, EBS, S3, SQS, SDB, and CloudFront.

right_http_connection

RightScale's robust HTTP/S connection module

rinku

ri_cal

rjb

rkelly-remix

rmagick

An interface between Ruby and the ImageMagick(TM) image processing library

robots

roodi

Roodi stands for Ruby Object Oriented Design Inferometer

rqr

rqrcode

rr

A double framework that features a rich selection of double techniques and a terse syntax

rrb

Ruby Refactoring Browser

rrdtool-bindings

rsi

rspec

A Behaviour Driven Development (BDD) framework for Ruby

rspec-core

rspec-expectations

rspec-mocks

rspec-rails

RSpec's official Ruby on Rails plugin

rspec_multi_matchers

rss

rubibob

RuBiBoB enables you to send sms and check your balance of your BiBoB account.

rubigen

A framework to allow Ruby applications to generate file/folder stubs.

rubocop

ruby-atk

Ruby Atk bindings

ruby-augeas

Ruby bindings for Augeas

ruby-breakpoint

An interactive debugging library

ruby-bz2

Ruby interface to libbz2

ruby-cabin

ruby-cairo-gobject

ruby-chasen

ChaSen module for Ruby

ruby-clutter

ruby-clutter-gstreamer

ruby-clutter-gtk

ruby-debug

CLI interface to ruby-debug

ruby-debug-base

Fast Ruby debugger

ruby-dict

RFC 2229 client in Ruby

ruby-eb

RubyEB is a ruby extension for EB Library

ruby-elf

Ruby library to access ELF files information

ruby-feedparser

Ruby library for parsing RSS and Atom feeds

ruby-filemagic

Ruby binding to libmagic

ruby-filewatch

ruby-freedb

A Ruby library to access cddb/freedb servers

ruby-ftw

ruby-gconf2

Ruby GConf2 bindings

ruby-gd

ruby-gd: an interface to Boutell GD library

ruby-gd2

Ruby bindings for the GD 2.x graphics library.

ruby-gdk3

ruby-gdkpixbuf2

Ruby GdkPixbuf2 bindings

ruby-gettext

Ruby GetText Package is Native Language Support Library and Tools modeled after GNU gettext package

ruby-gio2

ruby-glib2

Ruby Glib2 bindings

ruby-gnome2

Ruby Gnome2 bindings

ruby-gnomecanvas2

Ruby GnomeCanvas2 bindings

ruby-gobject-introspection

ruby-goocanvas

ruby-grok

ruby-gsl

Ruby wrapper for GNU Scientific Library

ruby-gstreamer

Ruby GStreamer bindings

ruby-gtk2

Ruby Gtk2 bindings

ruby-gtk3

ruby-gtksourceview

Ruby bindings for gtksourceview

ruby-gtksourceview3

ruby-hmac

A common interface to HMAC functionality as documented in RFC2104.

ruby-hunspell

Ruby bindings for Hunspell spell-checking library

ruby-inifile

Small library to parse INI-files in Ruby

ruby-insist

ruby-irc

Ruby-IRC is a framework for connecting and comunicating with IRC servers.

ruby-ldap

A Ruby interface to some LDAP libraries

ruby-libart2

Ruby Libart2 bindings

ruby-libglade2

Ruby Libglade2 bindings

ruby-mp3info

A pure Ruby library for access to mp3 files (internal infos and tags)

ruby-mpd

Ruby class for communicating with an MPD server

ruby-net-ldap

Pure ruby LDAP client implementation.

ruby-oci8

A Ruby library for Oracle

ruby-odbc

RubyODBC - For accessing ODBC data sources from the Ruby language

ruby-oembed

ruby-ogginfo

ruby-opengl

OpenGL / GLUT bindings for ruby

ruby-openid

A robust library for verifying and serving OpenID identities

ruby-pango

Ruby Pango bindings

ruby-password

Ruby/Password comprises a set of useful methods for creating, verifying and manipulating passwords.

ruby-pcap

Extension library to use libpcap from Ruby

ruby-poppler

Ruby poppler-glib bindings

ruby-prof

A module for profiling Ruby code

ruby-progressbar

A Text Progress Bar Library for Ruby

ruby-rc4

ruby-recaptcha

The ReCaptchaClient abstracts the ReCaptcha API for use in Rails Applications

ruby-rmail

Ruby mail handling library.

ruby-romkan

A Romaji <-> Kana conversion library for Ruby

ruby-rsvg

Ruby bindings for librsvg

ruby-saml

ruby-sdl

Ruby/SDL: Ruby bindings for SDL

ruby-shadow

ruby shadow bindings

ruby-shout

A Ruby interface to libshout2

ruby-stemmer

ruby-tcpwrap

A TCP wrappers library for Ruby

ruby-termios

A Ruby interface to termios

ruby-vte

Ruby vte bindings

ruby-vte3

ruby-webkit-gtk

ruby-webkit-gtk2

ruby-xslt

A Ruby class for processing XSLT

ruby-yadis

A ruby library for performing Yadis service discovery

ruby2ruby

Generates readable ruby from ParseTree

rubycas-client

rubyfilter

A mail handling library for Ruby

rubyforge

Simplistic script which automates a limited set of rubyforge operations

rubygame

A cross-platform multimedia library for ruby

rubygems

Centralized Ruby extension management system

RubyInline

rubylibcrack

A Ruby binding to the password strength checker, libcrack/cracklib.

rubyntlm

rubypants

A Ruby port of the SmartyPants PHP library.

rubytest

rubytest-cli

rubytree

rubytter

Rubytter is a simple twitter library

rubyzip

A ruby library for reading and writing zip files

ruby_gntp

ruby_parser

A ruby parser written in pure ruby.

ruby_protobuf

rumbster

rust

Ruby Extensions Generator

rvideo

Inspect and process video or audio files.

rvm

rye

Safely run SSH commands on a bunch of machines at the same time

safe_yaml

saikuro

A Ruby cyclomatic complexity analyzer.

samuel

An automatic logger for HTTP requests in Ruby.

sanitize

sass

sass-globbing

sass-rails

sassy-buttons

sassy-maps

sassy-math

sdoc

seed-fu

selectivizr-rails

selenium-webdriver

sequel

A lightweight database toolkit for Ruby

serialport

session

settingslogic

A simple configuration / settings solution that uses an ERB enabled YAML file.

sexp_processor

sfl

shipping

An easy to use shipping API for Ruby

shorturl

A very simple library to use URL shortening services such as TinyURL or RubyURL.

shotgun

Forking implementation of rackup

shoulda

Making tests easy on the fingers and eyes

shoulda-context

shoulda-matchers

sidekiq

sigar

simple-rss

Simple RSS is a simple, flexible, extensible, and liberal RSS and Atom reader for Ruby.

simplecov

simplecov-gem-adapter

simplecov-html

simple_oauth

sinatra

Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort.

sinatra-contrib

six

skydrive

slim

slop

snmplib

SNMP library implemented in pure Ruby

soap4r

source_map

sparklines

Create sparklines, small graphs to be used inline in texts.

spider

spork

spring

sprockets

sprockets-rails

sqlite3

sshkit

stale_fish

stamp

state_machine

statsample

stomp

Ruby bindings for the stomp messaging protocol

stompserver

Stomp messaging server with FIFO queues, queue monitoring, and basic authentication.

storable

stringex

stud

subcommand

subexec

susy

svn2git

swf_fu

syntax

Syntax highlighting for sourcecode and HTML

sys-proctable

sysinfo

All your system-independent info in one handy class

syslog-logger

syslogger

systemu

tclink

Make-like scripting in Ruby

tdiff

templater

A powerful code generation framework

temple

term-ansicolor

termcolor

a library for ANSI color formatting like HTML for output in terminal

terminal-table

test-construct

Construct is a DSL for creating temporary files and directories during testing.

test-spec

A library to do Behavior Driven Development with Test::Unit

test-unit

Nathaniel Talbott's originial test-unit

test-unit-rr

test_declarative

text

text-hyphen

Hyphenates various words according to the rules of the language the word is written in.

textpow

A library to parse and process Textmate bundles.

thinking-sphinx

A concise and easy-to-use Ruby library that connects ActiveRecord to the Sphinx search daemon.

thor

A scripting framework that replaces rake and sake

thread_safe

tidy-ext

tidy_table

Tool to convert an array of struct into an HTML table.

tilt

timecop

timers

tinder

tins

tmail

An email handling library

tokyocabinet

toml

transaction-simple

Provides transaction support at the object level

treetop

Treetop is a language for describing languages.

trollop

yet another fine commandline argument processing library

tryouts

High-level testing library (DSL) for Ruby codes and command-line applications

ts-datetime-delta

Manage delta indexes via datetime columns for Thinking Sphinx.

ttfunk

Get Ya TrueType Funk On! (Font Metrics Parser for Prawn)

turbolinks

twitter

Ruby wrapper around the Twitter API

twitter-stream

twitter_oauth

Extension of the Authlogic library to add OpenID support.

typed-array

typhoeus

tzinfo

Daylight-savings aware timezone library

uconv

A module to convert ISO/IEC 10646 (Unicode) string and Japanese strings

uglifier

ultraviolet

A syntax highlighting engine based on Textpow

underscore-rails

unf

unf_ext

user_agent

user_agent_parser

uuid

uuidtools

UUIDTools was designed to be a simple library for generating any of the various types of UUIDs.

versionomy

virtualbox

virtus

vlad

Pragmatic application deployment automation, without mercy.

vpim

A library to manipulate vCards and iCalendars

warden

watch

weakling

webmock

Allows stubbing HTTP requests and setting expectations on HTTP requests

webrat

Ruby acceptance testing for web applications

webrobots

websocket-driver

wikicloth

will_paginate

Most awesome pagination solution for Ruby

wirble

Wirble is a set of enhancements for Irb.

wmainfo-rb

xml-mapping

XML-to-object (and back) mapper for Ruby, including XPath interpreter

xml-simple

xmpp4r

An XMPP library for Ruby

xmpp4r-simple

Jabber::Simple - An extremely easy-to-use Jabber client library.

xpath

yajl-ruby

yamler

yard

Documentation generation tool for the Ruby programming language

zabbix

zabbixapi

zentest

ZenTest provides tools to support testing: zentest, unit_diff, autotest, multiruby, and Test::Rails

zipruby

zk

zmq

zookeeper

zoom

aasm

highrise

rest-client

abstract

hike

rev

actionmailer

hipchat

rexical

actionpack

hitimes

rflickr

actionview

hoe

rgen

activeldap

hoe-seattlerb

riddle

activemodel

hpricot

riel

activerecord

htmlentities

right_aws

activerecord-deprecated_finders

httmultiparty

right_http_connection

activeresource

http

rinku

activesupport

http-cookie

ri_cal

active_model_serializers

httparty

rjb

active_reload

httpauth

rkelly-remix

acts-as-taggable-on

httpclient

rmagick

acts_as_list

http_configuration

robots

acts_as_versioned

http_parser

roodi

addressable

http_parser_rb

rqr

adhearsion

htty

rqrcode

adhearsion-loquacious

i18n

rr

ae

icalendar

rrb

afm

imagesize

rrdtool-bindings

akismet

imlib2-ruby

rsi

allison

inifile

rspec

amatch

inline_attachment

rspec-core

amazon-ec2

innate

rspec-expectations

ammeter

innertube

rspec-mocks

amq-client

instantiator

rspec-rails

amq-protocol

introspection

rspec_multi_matchers

amqp

IO-Reactor

rss

amrita2

iobuffer

rubibob

animation

ipaddress

rubigen

annoy

isolate

rubocop

ansi

jabber4r

ruby-atk

apache_log_parser

jbox-gitolite

ruby-augeas

apetag

jeweler

ruby-breakpoint

api-versions

joiner

ruby-bz2

appraisal

journey

ruby-cabin

arachni-rpc

jquery-rails

ruby-cairo-gobject

arachni-rpc-em

jquery-ui-rails

ruby-chasen

archive-tar-minitar

jruby-openssl

ruby-clutter

arel

jsmin

ruby-clutter-gstreamer

ascii85

json

ruby-clutter-gtk

asciidoctor

json_pure

ruby-debug

ast

jwt

ruby-debug-base

async_sinatra

kaminari

ruby-dict

atomic

kirbybase

ruby-eb

attic

kissfft

ruby-elf

authlogic

knife-dsl

ruby-feedparser

authlogic-oid

kramdown

ruby-filemagic

autotest-rails

krb5-auth

ruby-filewatch

avl_tree

kwaff

ruby-freedb

awesome_nested_set

kwalify

ruby-ftw

awesome_print

kwartz-ruby

ruby-gconf2

aws-s3

langscan

ruby-gd

aws-sdb

launchy

ruby-gd2

aws-sdk

lemon

ruby-gdk3

aws-ses

letter_opener

ruby-gdkpixbuf2

backports

levenshtein

ruby-gettext

bacon

librex

ruby-gio2

barby

librmpd

ruby-glib2

bcat

libxml

ruby-gnome2

bcrypt-ruby

linecache

ruby-gnomecanvas2

beanstalk-client

linkedin

ruby-gobject-introspection

best_in_place

liquid

ruby-goocanvas

bitescript

listen

ruby-grok

blankslate

litc

ruby-gsl

blockenspiel

literati

ruby-gstreamer

bluecloth

little-plugger

ruby-gtk2

bones

locale

ruby-gtk3

bouncy-castle-java

lockfile

ruby-gtksourceview

bourne

log4r

ruby-gtksourceview3

brass

logging

ruby-hmac

breakpoint

logue

ruby-hunspell

bsearch

log_buddy

ruby-inifile

bson

loquacious

ruby-insist

buftok

lumberjack

ruby-irc

builder

mab

ruby-ldap

bundler

macaddr

ruby-libart2

bunny

magic

ruby-libglade2

cache_digests

mail

ruby-mp3info

caesars

map

ruby-mpd

calendar_date_select

maruku

ruby-net-ldap

calendar_helper

mash

ruby-oci8

camping

matchy

ruby-odbc

canny

mecab-ruby

ruby-oembed

capistrano

mechanize

ruby-ogginfo

capybara

mega-modules

ruby-opengl

carrierwave

memcache-client

ruby-openid

celluloid

memoizable

ruby-pango

celluloid-io

memoize

ruby-password

cerberus

merb-assets

ruby-pcap

CFPropertyList

merb-core

ruby-poppler

cgikit

merb-haml

ruby-prof

charlock_holmes

merb-helpers

ruby-progressbar

chef-zero

merb-param-protection

ruby-rc4

childlabor

merb-slices

ruby-recaptcha

childprocess

mercenary

ruby-rmail

chronic

metaclass

ruby-romkan

chunky_png

metaid

ruby-rsvg

clamp

metasploit_data_models

ruby-saml

classifier

meterpreter_bins

ruby-sdl

climate_control

method_source

ruby-shadow

cliver

metric_fu

ruby-shout

cmdparse

metriks

ruby-stemmer

cocaine

middleware

ruby-tcpwrap

coderay

mime-types

ruby-termios

code_analyzer

mimemagic

ruby-vte

coffee-rails

ming-ruby

ruby-vte3

coffee-script

minitest

ruby-webkit-gtk

coffee-script-source

mini_exiftool

ruby-webkit-gtk2

color

mini_magick

ruby-xslt

color-tools

mini_portile

ruby-yadis

colorator

mini_shoulda

ruby2ruby

colored

mixlib-authentication

rubycas-client

colorize

mixlib-cli

rubyfilter

columnize

mixlib-config

rubyforge

combustion

mixlib-log

rubygame

commander

mixlib-shellout

rubygems

compass

mocha

RubyInline

compass-core

modernizr

rubylibcrack

compass-import-once

modular-scale

rubyntlm

compass-rails

moneta

rubypants

configliere

money

rubytest

configuration

mongo

rubytest-cli

connection_pool

mongoid

rubytree

contest

mp3taglib

rubytter

cookiejar

mp4info

rubyzip

coolio

mpd-rb

ruby_gntp

cora

mruby

ruby_parser

countdownlatch

msfrpc-client

ruby_protobuf

crack

msgpack

rumbster

creole

multipart-post

rust

cri

multi_json

rvideo

crxmake

multi_test

rvm

css_parser

multi_xml

rye

curb

murmurhash3

safe_yaml

d3_rails

mustache

saikuro

daemons

mysql-ruby

samuel

daemon_controller

mysql2

sanitize

dalli

nagios

sass

database_cleaner

nagios_analyzer

sass-globbing

datamapper

nano-methods

sass-rails

data_objects

narray

sassy-buttons

date_validator

naught

sassy-maps

dbf

ncursesw-ruby

sassy-math

debugger-linecache

needle

sdoc

declarative_authorization

nested_form

seed-fu

deep_merge

net-dns

selectivizr-rails

default_value_for

net-geoip

selenium-webdriver

delayer

net-http-digest_auth

sequel

delocalize

net-http-persistent

serialport

deprecated

net-scp

session

dep_selector

net-sftp

settingslogic

descendants_tracker

net-ssh

sexp_processor

devise

net-ssh-gateway

sfl

diff

net-ssh-multi

shipping

diff-lcs

netrc

shorturl

directory_watcher

network_interface

shotgun

dirty-memoize

net_dav

shoulda

distribution

niceogiri

shoulda-context

dm-aggregates

nio4r

shoulda-matchers

dm-constraints

nokogiri

sidekiq

dm-core

nokogiri-diff

sigar

dm-do-adapter

nokogiri-happymapper

simple-rss

dm-migrations

nora

simplecov

dm-serializer

notify

simplecov-gem-adapter

dm-sqlite-adapter

ntlm-http

simplecov-html

dm-timestamps

oauth

simple_oauth

dm-transactions

oauth-plugin

sinatra

dm-types

oauth2

sinatra-contrib

dm-validations

ohai

six

dnsruby

oj

skydrive

docile

omniauth

slim

documatic

omniauth-github

slop

domain_name

omniauth-google-oauth2

snmplib

dotenv

omniauth-oauth

soap4r

dotenv-deployment

omniauth-oauth2

source_map

do_sqlite3

omniauth-twitter

sparklines

draper

open4

spider

drydock

open_id_authentication

spork

duby

optiflag

spring

dust

org-ruby

sprockets

echoe

origin

sprockets-rails

edn

orm_adapter

sqlite3

em-http-request

osmlib-base

sshkit

em-synchrony

ox

stale_fish

em-websocket

packetfu

stamp

enumerize

paint

state_machine

equalizer

paper_trail

statsample

erubis

parseconfig

stomp

eruby

parser

stompserver

escape_utils

parslet

storable

ethon

patron

stringex

evented-spec

paypal

stud

eventmachine

pcaprub

subcommand

exception_notification

pdf-core

subexec

excon

pdf-inspector

susy

execjs

pdf-reader

svn2git

exifr

permutation

swf_fu

expression_parser

pg

syntax

extendmatrix

piston

sys-proctable

extensions

pivotal-tracker

sysinfo

extlib

pkg-config

syslog-logger

facebooker

plist

syslogger

facets

plruby

systemu

facter

plugman

tclink

factory_girl

png

tdiff

fakefs

podcast

templater

fakeweb

poltergeist

temple

faraday

polyglot

term-ansicolor

faraday_middleware

pony

termcolor

fast-stemmer

posix-spawn

terminal-table

fastthread

powerpack

test-construct

fast_gettext

prawn

test-spec

fast_xs

prawn-core

test-unit

fattr

prawn-layout

test-unit-rr

fcgi

prawn-security

test_declarative

feed_parser

priorityqueue

text

ferret

programming-ruby

text-hyphen

ffaker

protected_attributes

textpow

ffi

pry

thinking-sphinx

ffi-rzmq

psych

thor

ffi-rzmq-core

puma

thread_safe

file-tail

pygments_rb

tidy-ext

fivemat

pyu-ruby-sasl

tidy_table

fix_microsoft_links

qed

tilt

flacinfo-rb

quixml

timecop

flay

racc

timers

flexmock

rack

tinder

flickr

rack-accept

tins

flickraw

rack-attack

tmail

flog

rack-cache

tokyocabinet

fog

rack-contrib

toml

foreman

rack-mount

transaction-simple

forgery

rack-openid

treetop

formatador

rack-protection

trollop

formatize

rack-ssl

tryouts

formtastic

rack-test

ts-datetime-delta

fssm

radius

ttfunk

fusefs

ragol

turbolinks

fxruby

railroady

twitter

gelf

rails

twitter-stream

gelfd

rails-acts_as_tree

twitter_oauth

gemcutter

rails-acts_as_versioned

typed-array

gemoji

rails-app-installer

typhoeus

gem_plugin

rails-engines

tzinfo

geocoder

rails-observers

uconv

geoip

rails_autolink

uglifier

GeoRuby

rails_best_practices

ultraviolet

gettext_i18n_rails

railties

underscore-rails

gherkin

rainbow

unf

gibbler

rake

unf_ext

gimp-ruby

rake-compiler

user_agent

git

rake-remote_task

user_agent_parser

git-pivotal-tracker-integration

ramaze

uuid

github-linguist

rantly

uuidtools

github-markdown

rash

versionomy

github-markup

rb-gsl

virtualbox

github_api

rb-inotify

virtus

gitlab-gollum-lib

rb-readline

vlad

gitlab-grack

rbbr

vpim

gitlab-grit

rbstaff

warden

gitlab_git

rbtree

watch

gitlab_omniauth-ldap

rbwebkitgtk

weakling

gloc

rcairo

webmock

gnuplot

rchardet19

webrat

god

rcsparse

webrobots

googlecharts

rdiscount

websocket-driver

grape

rdoc

wikicloth

grape-entity

rdtool

will_paginate

gratr19

realrand

wirble

grb

redcarpet

wmainfo-rb

grit

redcloth

xml-mapping

gruff

redgreen

xml-simple

guard

redis

xmpp4r

guard-rspec

redis-actionpack

xmpp4r-simple

haml

redis-activesupport

xpath

haml-rails

redis-namespace

yajl-ruby

hanna

redis-rack

yamler

happymapper

redis-rails

yard

hashery

redis-store

zabbix

hashie

reek

zabbixapi

hashr

refe

zentest

has_many_polymorphs

request-log-analyzer

zipruby

heredoc_unindent

request_store

zk

hexoid

require_all

zmq

hiera

require_relative

zookeeper

highline

responds_to_parent

zoom