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.

actionwebservice

Simple Support for Web Services APIs for Rails

activemodel

A toolkit for building modeling frameworks like Active Record and Active Resource.

activerecord

Implements the ActiveRecord pattern (Fowler, PoEAA) for ORM

activeresource

Think Active Record for web resources..

activesupport

Utility Classes and Extension to the Standard Library

addressable

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

adhearsion

'Adhesion you can hear' for integrating VoIP

allison

A modern, pretty RDoc template.

amatch

Approximate Matching Extension for Ruby

amazon-ec2

Library for accessing the Amazon Web Services EC2 and related

ammeter

Write specs for your Rails 3+ generators

amq-protocol

An AMQP 0.9.1 serialization library for Ruby.

amqp

AMQP client implementation in Ruby/EventMachine

amstd

Ruby utility collection by Minero Aoki

annoy

Like your annoying friend that asks you questions all the time

archive-tar-minitar

Provides POSIX tarchive management from Ruby programs.

arel

Arel is a Relational Algebra for Ruby.

arrayfields

Allow keyword access to array instances.

ascii85

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

async_sinatra

Asynchronous response API for Sinatra and Thin

attic

A place for Ruby objects to hide instance variables

autotest-rails

This is an autotest plugin to provide rails support.

awesome_print

Ruby library that pretty prints Ruby objects in full color with proper indentation.

aws-s3

Client library for Amazon's Simple Storage Service's REST API

bacon

Small RSpec clone weighing less than 350 LoC

barby

Ruby barcode generator that doesn't rely on 3rd party libraries.

bcat

A pipe to browser utility for use at the shell and within editors like Vim or Emacs.

bcrypt-ruby

An easy way to keep your users' passwords secure.

best_in_place

In-place editor helper for Rails 3o

bitescript

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

bluecloth

A Ruby implementation of Markdown

bones

Tool that creates new Ruby projects from a code skeleton

bouncy-castle-java

A gem redistribution of 'Legion of the Bouncy Castle Java cryptography APIs'

bourne

Extends mocha to allow detailed tracking and querying of stub and mock invocations.

bson

A Ruby BSON implementation for MongoDB. (Includes binary C-based extension.)

builder

A builder to facilitate programatic generation of XML markup

bundler

An easy way to vendor gem dependencies

bunny

Another synchronous Ruby AMQP client

caesars

Rapid DSL prototyping in Ruby.

calendar_date_select

A popular and flexible JavaScript DatePicker for RubyOnRails

camping

A small web framework modeled after Ruby on Rails.

canny

Canny is a template library for Ruby.

capistrano

A distributed application deployment system

capybara

Capybara aims to simplify the process of integration testing Rack applications.

cerberus

Continuous Integration tool for ruby projects

cgikit

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

childprocess

A simple and reliable solution for controlling external programs running in the background.

chronic

Chronic is a natural language date/time parser written in pure Ruby.

chunky_png

Pure Ruby library that can read and write PNG images

cmdparse

Advanced command line parser supporting commands

cocaine

A small library for doing command lines

coderay

A Ruby library for syntax highlighting.

coffee-rails

Coffee Script adapter for the Rails asset pipeline.

coffee-script

Ruby CoffeeScript is a bridge to the official CoffeeScript compiler.

coffee-script-source

Ruby CoffeeScript is a bridge to the official CoffeeScript compiler.

color

Colour management with Ruby

color-tools

Ruby library to provide RGB and CMYK colour support.

columnize

Sorts an array in column order.

coolio

A high performance event framework for Ruby which uses the libev C library

crack

Really simple JSON and XML parsing, ripped from Merb and Rails.

cri

Cri is a library for building easy-to-use commandline tools.

css_parser

Sass-based Stylesheet Framework

daemons

Wrap existing ruby scripts to be run as a daemon

daemon_controller

A library for starting and stopping specific daemons programmatically in a robust manner.

date_validator

Simple, ORM agnostic, Ruby 1.9 compatible date validator for Rails 3

dbd-mysql

The MySQL database driver (DBD) for Ruby/DBI

dbd-odbc

The ODBC database driver (DBD) for Ruby/DBI

dbd-pg

The PostgreSQL database driver (DBD) for Ruby/DBI

dbd-sqlite

The SQLite database driver (DBD) for Ruby/DBI

dbd-sqlite3

The SQLite 3 database driver (DBD) for Ruby/DBI

delocalize

A tool for parsing localized dates/times and numbers

deprecated

A Ruby library for handling deprecated code

dep_selector

constraint based package dependency resolver

diff

Computes the differences between two arrays of elements

diff-lcs

Use the McIlroy-Hunt LCS algorithm to compute differences

dnsruby

A pure Ruby DNS client library

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

em-http-request

Asynchronous HTTP client for Ruby, based on EventMachine runtime.

erubis

Erubis is an implementation of eRuby

eruby

eRuby interprets a Ruby code embedded text file

eventmachine

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

execjs

ExecJS lets you run JavaScript code from Ruby

exifr

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

extensions

Extensions to the standard Ruby library

extlib

Support library for DataMapper and Merb

facets

Facets is an extension library adding extra functionality to Ruby

facter

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

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

fastercsv

FasterCSV is a replacement for the standard CSV library

fastthread

Optimized replacement for thread.rb primitives

fast_gettext

GetText but 3.5 x faster, 560 x less memory, simple, clean namespace (7 vs 34) and threadsave!

fast_xs

fast_xs text escaping library ruby bindings.

fattr

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

ffi

Ruby extension for programmatically loading dynamic libraries

file-tail

A small ruby library that allows it to 'tail' files in Ruby

flexmock

Simple mock object library for Ruby unit testing

flickr

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

flog

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

fssm

File System State Monitor API

fusefs

Define file systems right in Ruby

fxruby

Ruby language binding to the FOX GUI toolkit

gemcutter

Add commands to gem for gemcutter.org operations

gem_plugin

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

GeoRuby

Ruby data holder for OGC Simple Features

gettext_activerecord

An L10 library for ActiveRecord.

gettext_i18n_rails

FastGettext / Rails integration.

gettext_rails

An L10 library for Ruby on Rails.

gherkin

Fast Gherkin lexer and parser based on Ragel.

gibbler

Git-like hashes for Ruby objects

gnuplot

Gnuplot drawing library - Ruby Bindings

gruff

RMagick Implementation for JRuby

haml

HAML - a ruby web page templating engine

hashie

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

heckle

Unit Test Sadism

hexoid

Generate Ruby style object ids

highline

Highline is a high-level command-line IO library for ruby.

hike

Hike is a Ruby library for finding files in a set of paths.

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.

httparty

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

httpclient

'httpclient' gives something like the functionality of libwww-perl (LWP) in Ruby

i18n

Add Internationalization support to your Ruby application.

id3lib-ruby

Ruby interface to the id3lib C++ library

imagesize

Measure image size (GIF, PNG, JPEG, etc)

imlib2-ruby

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

inifile

Native Ruby package for reading and writing INI files.

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

A library designed to make manipulation of IPv4 and IPv6 addresses both powerful and simple

jabber4r

A Jabber library in pure Ruby

jeweler

Rake tasks for managing gems and versioning and a generator for creating a new project

journey

Journey is a router. It routes requests.

jquery-rails

jQuery! For Rails! So great.

jruby-debug-base

Fast Ruby debugger

jruby-openssl

A Ruby SSL library that works with JRuby

json

A JSON implementation as a Ruby extension.

kirbybase

A simple Ruby DBMS that stores data in plaintext files.

kramdown

yet-another-markdown-parser but fast, pure Ruby, using a strict syntax definition.

libxml

Ruby libxml with a user friendly API, akin to REXML, but feature complete and significantly faster.

linecache

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

litc

A tiny ruby module for Amazon EC2 intance metadata

little-plugger

Module that provides Gem based plugin management

locale

A pure ruby library which provides basic APIs for localization.

locale_rails

This library provides some Rails localized functions.

log4r

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

log_buddy

Log statements along with their name easily.

loquacious

Descriptive configuration files for Ruby written in Ruby

mail

An email handling library

main

A class factory and dsl for generating command line programs real quick.

map

A string/symbol indifferent ordered hash that works in all rubies.

markaby

A templating language for Ruby to write HTML templates in pre Ruby

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

A ruby library for accessing memcached.

merb-assets

Merb plugin that provides the helpers for assets and asset bundling

merb-core

Pocket rocket web framework

merb-haml

Merb plugin that provides HAML support

merb-helpers

Helper support for Merb

merb-param-protection

Merb plugin that provides params_accessible and params_protected class methods

merb-slices

Merb plugin for using and creating application slices

metaclass

Adds a __metaclass__ method to all Ruby objects.

metaid

An aid to Ruby metaprogramming

method_source

Retrieve the source code for a method.

mime-types

Provides a mailcap-like MIME Content-Type lookup for Ruby.

minitest

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

mini_magick

Manipulate images with minimal use of memory.

mixlib-authentication

Mixes in simple per-request authentication

mixlib-cli

Mixin for creating command line applications

mixlib-config

Simple class based Config mechanism

mixlib-log

Simple class based Log mechanism

mixlib-shellout

Run external commands on Unix or Windows

mkrf

mkrf is a library for generating Rakefiles, primarily intended for building C extentions for Ruby.

mmap

The Mmap class implement memory-mapped file objects

mocha

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

moneta

A unified interface to key/value stores

mongo

A Ruby driver for MongoDB.

mongoid

ODM (Object Document Mapper) Framework for MongoDB

msgpack

Binary-based efficient data interchange format for ruby binding

multipart-post

Adds a streamy multipart form post capability to Net::HTTP.

multi_json

A gem to provide swappable JSON backends

multi_xml

A generic swappable back-end for XML parsing

mustache

Mustache is a framework-agnostic way to render logic-free views.

mysql-ruby

A Ruby extension library to use MySQL

mysql2

A modern, simple and very fast Mysql library for Ruby - binding to libmysql.

nagios_analyzer

A simple parser for Nagios status files

nano-methods

Ruby's Atomic Library

narray

Numerical N-dimensional Array class

ncurses-ruby

Ruby wrappers of ncurses and PDCurses libs

needle

Dependency injection for Ruby

net-dns

DNS resolver in pure Ruby

net-geoip

Ruby bindings for the GeoIP library

net-http-digest_auth

An implementation of RFC 2617 - Digest Access Authentication.

net-http-persistent

Manages persistent connections using Net::HTTP plus a speed fix for Ruby 1.8.

net-scp

A pure Ruby implementation of the SCP client protocol

net-sftp

SFTP in pure Ruby

net-ssh

Non-interactive SSH processing in pure Ruby

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.

nokogiri

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

nora

Nora - ruby libraries for web application library

notify

A function to notify on cross platform

oauth

A RubyGem for implementing both OAuth clients and servers.

oauth2

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

ohai

Ohai profiles your system and emits JSON

oniguruma

Ruby bindings to the Oniguruma

open4

Open3::popen3 with exit status

osmlib-base

A ruby library for OpenStreetMap.

parsetree

ParseTree extracts the parse tree for a Class or method and returns it as a s-expression.

patron

Patron is a Ruby HTTP client library based on libcurl.

pdf-inspector

A tool for analyzing PDF output.

pdf-reader

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

pdf-writer

A pure Ruby PDF document creation library.

pg

Ruby extension library providing an API to PostgreSQL

piston

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

pkg-config

A pkg-config implementation by Ruby

plist

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

plruby

plruby language for PostgreSQL

png

An almost pure-Ruby Portable Network Graphics (PNG) library.

podcast

A pure Ruby library for generating podcasts from mp3 files

polyglot

Polyglot provides support for fully-custom DSLs.

posix-spawn

The posix-spawn library aims to implement a subset of the Ruby 1.9 Process::spawn

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

programming-ruby

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

pry

Pry is a powerful alternative to the standard IRB shell for Ruby.

quixml

A fast Ruby XML API written in C

racc

A LALR(1) parser generator for Ruby

rack

A modular Ruby webserver interface

rack-cache

A drop-in component to enable HTTP caching for Rack-based applications that produce freshness info.

rack-mount

A stackable dynamic tree based Rack router.

rack-protection

This gem protects against typical web attacks.

rack-ssl

Force SSL/TLS in your app.

rack-test

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

radiant

A no-fluff, open source content management system

radius

Powerful tag-based template system.

rails

ruby on rails is a web-application and persistance framework

railties

Tools for creating, working with, and running Rails applications.

rake

Make-like scripting in Ruby

rake-compiler

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

rake-remote_task

Vlad the Deployer's sexy brainchild is rake-remote_task, extending Rake with remote task goodness.

rand

A Ruby library for picking random elements and shuffling.

rash

Rash is an extension to Hashie.

rb-inotify

A thorough inotify wrapper for Ruby using FFI.

rbbr

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

rbtree

Ruby/RBTree module.

rcairo

Ruby bindings for cairo

rcov

A ruby code coverage analysis tool

rcsparse

rcsparse ruby module

rdiscount

Implementation of John Gruber's Markdown

rdoc

An extended version of the RDoc library from Ruby 1.8

rdtool

A multipurpose documentation format for Ruby

redcarpet

A Ruby wrapper for Upskirt.

redcloth

A module for using Textile in Ruby

refe

ReFe is an interactive reference for Japanese Ruby manual

require_relative

Backport require_relative from ruby 1.9.2.

rest-client

Simple Simple HTTP and REST client for Ruby

rev

Rev is an event library for Ruby, built on the libev event library.

revolution

Ruby binding for the Evolution email client.

rexical

Rexical is a lexical scanner generator

rflickr

A Ruby implementation of the Flickr API.

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

rmagick

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

rqr

A ruby library to create qrcode

rqrcode

Library for encoding QR Codes.

rr

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

rspec

A Behaviour Driven Development (BDD) framework for Ruby

rspec-core

A Behaviour Driven Development (BDD) framework for Ruby

rspec-expectations

A Behaviour Driven Development (BDD) framework for Ruby

rspec-mocks

A Behaviour Driven Development (BDD) framework for Ruby

rspec-rails

RSpec's official Ruby on Rails plugin

rubigen

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

ruby-activeldap

Ruby/ActiveLDAP provides an activerecord inspired object oriented interface to LDAP

ruby-atk

Ruby Atk bindings

ruby-augeas

Ruby bindings for Augeas

ruby-bdb

Ruby interface to Berkeley DB

ruby-breakpoint

An interactive debugging library

ruby-bsearch

A binary search library for Ruby

ruby-bz2

Ruby interface to libbz2

ruby-chasen

ChaSen module for Ruby

ruby-dbi

Ruby/DBI - a database independent interface for accessing databases - similar to Perl's DBI

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-fcgi

FastCGI library for Ruby

ruby-ferret

A ruby indexing/searching library

ruby-filemagic

Ruby binding to libmagic

ruby-freedb

A Ruby library to access cddb/freedb servers

ruby-gconf2

Ruby GConf2 bindings

ruby-gd

ruby-gd: an interface to Boutell GD library

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 binding of GooCanvas

ruby-glib2

Ruby Glib2 bindings

ruby-gnome2

Ruby Gnome2 bindings

ruby-gnomecanvas2

Ruby GnomeCanvas2 bindings

ruby-gnomevfs

Ruby GnomeVFS bindings

ruby-goocanvas

Ruby binding of GooCanvas

ruby-gsl

Ruby wrapper for GNU Scientific Library

ruby-gstreamer

Ruby GStreamer bindings

ruby-gtk2

Ruby Gtk2 bindings

ruby-gtkglext

Ruby GtkGLExt bindings

ruby-gtkhtml2

Ruby GtkHtml2 bindings

ruby-gtksourceview

Ruby bindings for gtksourceview

ruby-hmac

A common interface to HMAC functionality as documented in RFC2104.

ruby-inifile

Small library to parse INI-files in Ruby

ruby-inline

Allows to embed C/C++ in Ruby code

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-liquid

Template engine for Ruby

Ruby-MemCache

memcache bindings for Ruby

ruby-mp3info

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

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-opengl

OpenGL / GLUT bindings for ruby

ruby-openid

A robust library for verifying and serving OpenID identities

ruby-panel-applet2

Ruby Panel-applet bindings

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-postgres

An extension library to access a PostgreSQL database from Ruby

ruby-prof

A module for profiling Ruby code

ruby-progressbar

A Text Progress Bar Library for Ruby

ruby-rc4

A pure Ruby implementation of the Rc4 algorithm.

ruby-romkan

A Romaji <-> Kana conversion library for Ruby

ruby-rsvg

Ruby bindings for librsvg

ruby-sdl

Ruby/SDL: Ruby bindings for SDL

ruby-shadow

ruby shadow bindings

ruby-shout

A Ruby interface to libshout2

ruby-svg

Ruby SVG Generator

ruby-taglib

Ruby bindings for the taglib, allowing to access MP3, OGG, and FLAC tags

ruby-tcpwrap

A TCP wrappers library for Ruby

ruby-termios

A Ruby interface to termios

ruby-vte

Ruby vte bindings

ruby-xslt

A Ruby class for processing XSLT

ruby-yadis

A ruby library for performing Yadis service discovery

ruby-zoom

A Ruby binding to the Z39.50 Object-Orientation Model (ZOOM)

ruby2ruby

Generates readable ruby from ParseTree

rubyfilter

A mail handling library for Ruby

rubyforge

Simplistic script which automates a limited set of rubyforge operations

rubygems

Centralized Ruby extension management system

rubymail

A mail handling library for Ruby

rubypants

A Ruby port of the SmartyPants PHP library.

rubytorrent

A pure-Ruby BitTorrent peer library and toolset

rubytter

Rubytter is a simple twitter library

rubyzip

A ruby library for reading and writing zip files

ruby_parser

A ruby parser written in pure ruby.

rye

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

samuel

An automatic logger for HTTP requests in Ruby.

sary-ruby

Ruby Binding of Sary

sass

An extension of CSS3, adding nested rules, variables, mixins, selector inheritance, and more.

sass-rails

Official Ruby-on-Rails Integration with Sass

selenium-webdriver

This gem provides Ruby bindings for WebDriver.

semacode

DataMatrix encoder for Ruby

serialport

a library for serial port (rs232) access in ruby

session

A set of classes to drive external programs via pipe

sexp-processor

Processor for s-expressions created as part of the ParseTree project.

sfl

This library provides spawn() which is almost perfectly compatible with ruby 1.9's.

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

sigar

Ohai profiles your system and emits JSON

simple-rss

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

simple_oauth

Simply builds and verifies OAuth headers.

sinatra

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

slop

A simple option parser with an easy to remember syntax and friendly API.

snmplib

SNMP library implemented in pure Ruby

sparklines

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

spork

Spork is Tim Harper's implementation of test server.

sprockets

Ruby library for compiling and serving web assets.

spruz

All the stuff that isn't good enough for a real library.

sqlite-ruby

An extension library to access a SQLite database from Ruby

sqlite3-ruby

An extension library to access a SQLite database from Ruby

stomp

Ruby bindings for the stomp messaging protocol

stompserver

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

storable

Marshal Ruby classes into and out of multiple formats

stringex

Extensions for Ruby's String class

subexec

Subexec spawns an external command with a timeout

syntax

Syntax highlighting for sourcecode and HTML

sysinfo

All your system-independent info in one handy class

syslogger

Drop-in replacement for the standard Logger, that logs to the syslog

systemu

Universal capture of STDOUT and STDERR and handling of child process PID

system_timer

Signal-based timer for Ruby 1.8 (and RubyEE 1.8)

tclink

Make-like scripting in Ruby

term-ansicolor

Small Ruby library that colors strings using ANSI escape sequences.

termcolor

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

test-spec

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

test-unit

An improved version of the Test::Unit framework from Ruby 1.8

test_declarative

Simply adds a declarative test method syntax to test/unit.

text-format

Text::Format provides strong text formatting capabilities to Ruby

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.

thor

A scripting framework that replaces rake and sake

tidy-ext

W3C HTML Tidy library implemented as a Ruby extension.

tidy_table

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

tilt

A thin interface over a Ruby template engines to make their usage as generic as possible.

timecop

A gem providing 'time travel' and 'time freezing' capabilities

tins

All the stuff that isn't good enough for a real library.

tmail

An email handling library

transaction-simple

Provides transaction support at the object level

treetop

Treetop is a language for describing languages.

trollop

Trollop is a commandline option parser for Ruby.

tryouts

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

ttfunk

A TrueType font parser written in pure ruby.

twitter

Ruby wrapper around the Twitter API

tzinfo

Daylight-savings aware timezone library

uconv

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

uglifier

Ruby wrapper for UglifyJS JavaScript compressor.

ultraviolet

A syntax highlighting engine based on Textpow

unf

A wrapper library to bring Unicode Normalization Form support to Ruby/JRuby.

unf_ext

Unicode Normalization Form support library for CRuby

uuidtools

Simple library to generate UUIDs

vlad

Pragmatic application deployment automation, without mercy.

weakling

weakling: a collection of weakref utilities for Ruby

webmock

Allows stubbing HTTP requests and setting expectations on HTTP requests

webrat

Ruby acceptance testing for web applications

webrobots

A library to help write robots.txt compliant web robots.

will_paginate

Most awesome pagination solution for Ruby

wirble

Wirble is a set of enhancements for Irb.

xml-mapping

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

xml-simple

Easy API to maintain XML. It is a Ruby port of Grant McLean's Perl module XML::Simple.

xmpp4r

An XMPP library for Ruby

xpath

XPath is a Ruby DSL around a subset of XPath 1.0.

yajl-ruby

Ruby C bindings to the Yajl JSON stream-based parser library

yard

Documentation generation tool for the Ruby programming language

zentest

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

abstract

litc

ruby-eb

actionmailer

little-plugger

ruby-elf

actionpack

locale

ruby-fcgi

actionwebservice

locale_rails

ruby-ferret

activemodel

log4r

ruby-filemagic

activerecord

log_buddy

ruby-freedb

activeresource

loquacious

ruby-gconf2

activesupport

mail

ruby-gd

addressable

main

ruby-gdkpixbuf2

adhearsion

map

ruby-gettext

allison

markaby

ruby-gio2

amatch

maruku

ruby-glib2

amazon-ec2

mash

ruby-gnome2

ammeter

matchy

ruby-gnomecanvas2

amq-protocol

mecab-ruby

ruby-gnomevfs

amqp

mechanize

ruby-goocanvas

amstd

mega-modules

ruby-gsl

annoy

memcache-client

ruby-gstreamer

archive-tar-minitar

merb-assets

ruby-gtk2

arel

merb-core

ruby-gtkglext

arrayfields

merb-haml

ruby-gtkhtml2

ascii85

merb-helpers

ruby-gtksourceview

async_sinatra

merb-param-protection

ruby-hmac

attic

merb-slices

ruby-inifile

autotest-rails

metaclass

ruby-inline

awesome_print

metaid

ruby-irc

aws-s3

method_source

ruby-ldap

bacon

mime-types

ruby-libart2

barby

minitest

ruby-libglade2

bcat

mini_magick

ruby-liquid

bcrypt-ruby

mixlib-authentication

Ruby-MemCache

best_in_place

mixlib-cli

ruby-mp3info

bitescript

mixlib-config

ruby-net-ldap

bluecloth

mixlib-log

ruby-oci8

bones

mixlib-shellout

ruby-odbc

bouncy-castle-java

mkrf

ruby-opengl

bourne

mmap

ruby-openid

bson

mocha

ruby-panel-applet2

builder

moneta

ruby-pango

bundler

mongo

ruby-password

bunny

mongoid

ruby-pcap

caesars

msgpack

ruby-poppler

calendar_date_select

multipart-post

ruby-postgres

camping

multi_json

ruby-prof

canny

multi_xml

ruby-progressbar

capistrano

mustache

ruby-rc4

capybara

mysql-ruby

ruby-romkan

cerberus

mysql2

ruby-rsvg

cgikit

nagios_analyzer

ruby-sdl

childprocess

nano-methods

ruby-shadow

chronic

narray

ruby-shout

chunky_png

ncurses-ruby

ruby-svg

cmdparse

needle

ruby-taglib

cocaine

net-dns

ruby-tcpwrap

coderay

net-geoip

ruby-termios

coffee-rails

net-http-digest_auth

ruby-vte

coffee-script

net-http-persistent

ruby-xslt

coffee-script-source

net-scp

ruby-yadis

color

net-sftp

ruby-zoom

color-tools

net-ssh

ruby2ruby

columnize

net-ssh-gateway

rubyfilter

coolio

net-ssh-multi

rubyforge

crack

nokogiri

rubygems

cri

nora

rubymail

css_parser

notify

rubypants

daemons

oauth

rubytorrent

daemon_controller

oauth2

rubytter

date_validator

ohai

rubyzip

dbd-mysql

oniguruma

ruby_parser

dbd-odbc

open4

rye

dbd-pg

osmlib-base

samuel

dbd-sqlite

parsetree

sary-ruby

dbd-sqlite3

patron

sass

delocalize

pdf-inspector

sass-rails

deprecated

pdf-reader

selenium-webdriver

dep_selector

pdf-writer

semacode

diff

pg

serialport

diff-lcs

piston

session

dnsruby

pkg-config

sexp-processor

drydock

plist

sfl

duby

plruby

shipping

dust

png

shorturl

echoe

podcast

shotgun

em-http-request

polyglot

shoulda

erubis

posix-spawn

sigar

eruby

prawn

simple-rss

eventmachine

prawn-core

simple_oauth

execjs

prawn-layout

sinatra

exifr

prawn-security

slop

extensions

programming-ruby

snmplib

extlib

pry

sparklines

facets

quixml

spork

facter

racc

sprockets

fakefs

rack

spruz

fakeweb

rack-cache

sqlite-ruby

faraday

rack-mount

sqlite3-ruby

fastercsv

rack-protection

stomp

fastthread

rack-ssl

stompserver

fast_gettext

rack-test

storable

fast_xs

radiant

stringex

fattr

radius

subexec

ffi

rails

syntax

file-tail

railties

sysinfo

flexmock

rake

syslogger

flickr

rake-compiler

systemu

flog

rake-remote_task

system_timer

fssm

rand

tclink

fusefs

rash

term-ansicolor

fxruby

rb-inotify

termcolor

gemcutter

rbbr

test-spec

gem_plugin

rbtree

test-unit

GeoRuby

rcairo

test_declarative

gettext_activerecord

rcov

text-format

gettext_i18n_rails

rcsparse

text-hyphen

gettext_rails

rdiscount

textpow

gherkin

rdoc

thor

gibbler

rdtool

tidy-ext

gnuplot

redcarpet

tidy_table

gruff

redcloth

tilt

haml

refe

timecop

hashie

require_relative

tins

heckle

rest-client

tmail

hexoid

rev

transaction-simple

highline

revolution

treetop

hike

rexical

trollop

hoe

rflickr

tryouts

hoe-seattlerb

right_aws

ttfunk

hpricot

right_http_connection

twitter

htmlentities

rmagick

tzinfo

httparty

rqr

uconv

httpclient

rqrcode

uglifier

i18n

rr

ultraviolet

id3lib-ruby

rspec

unf

imagesize

rspec-core

unf_ext

imlib2-ruby

rspec-expectations

uuidtools

inifile

rspec-mocks

vlad

IO-Reactor

rspec-rails

weakling

iobuffer

rubigen

webmock

ipaddress

ruby-activeldap

webrat

jabber4r

ruby-atk

webrobots

jeweler

ruby-augeas

will_paginate

journey

ruby-bdb

wirble

jquery-rails

ruby-breakpoint

xml-mapping

jruby-debug-base

ruby-bsearch

xml-simple

jruby-openssl

ruby-bz2

xmpp4r

json

ruby-chasen

xpath

kirbybase

ruby-dbi

yajl-ruby

kramdown

ruby-debug

yard

libxml

ruby-debug-base

zentest

linecache

ruby-dict