manipulation and transformation of HTML/XML documents and fragments

efficient implementation of an lru cache

Lumberjack is a logging implementation in Ruby

templating engine for writing HTML in pure Ruby

library to read system mac address

Ruby FFI bindings to libmagic

Ruby library to handle email generation, parsing and sending

GPG/MIME encryption plugin for the Ruby Mail Library

Simple mime type detection

Attach comments to your ActiveRecord queries

Ruby bindings for MARISA

multipart templates made easy with Markdown + ERb

Markdown-superset interpreter written in Ruby

TeX formula to MathML conversion library for Ruby

Ruby library that provides access to a Maven installation

helpers for maven related tasks

Minitest + all the features you always wanted

MaxMind DB binary file reader

MDUrl for motion-markdown-it in Ruby

Mecab binding for Ruby language

library used for automating interaction with websites

Ruby library providing method memoization

memoize method return values

memory profiler for Ruby

wise Ruby memoization library

Lightweight and flexible library for writing command-line apps in Ruby

Send email through the Message Bus service

Ruby library adding a metaclass method to all Ruby objects

Some additional methods to make metaprogramming easier

Retrieve the sourcecode for a method as a Ruby string

experimental threadsafe, low-impact measurement library for Ruby

MIME library for Ruby

Fast mime detection by extension or content

guess MIME type of files

registry for information about MIME media type definitions

wrapper for exiftool command-line

build histograms out of Ruby arrays

wrapper for ImageMagick with a small memory footprint

Lightweight mime type implementation

Ruby library providing minimization algorithms

simplistic port-like solution for developers

define and access metadata in MiniTest::Spec

Provides POSIX tarchive management for Ruby

Ruby test tools supporting TDD, BDD, mocking, and benchmarking

Around block for minitest

Ruby unit tests helper library for MiniTest framework

provides ability to focus on a few tests easily

Support minitest expectation methods for all objects

Around and before_all/after_all/around_all hooks for Minitest

power assert implementation for minitest