GovKit-CA lets you quickly get encapsulated Ruby objects for Canadian civic data.

Library for dealing with color gradients in ruby

Papertrail support for Grape APIs

This parser programmatically creates a Ruby object from a GreenButton data file. See https://collaborate.nist.gov/twiki-sggrid/bin/view/SmartGrid/GreenButtonSDK for more information on GreenButton. It is under active development and participation is encouraged. It is not yet stable.

CLI tool for AtCoder and Ruby

A Markdown parser for Qiita, based on Redcarpet.

Harness GSA indexing power easily and immediately with one-line feeding, searching, and faceting. This gem is tailored for the use in commerce and other such uses outside the scope of the out-of-the-box GSA "internal search".

Queries Google search and parses the resulting web page for content.

Allows access to the Guidestar API

Hacker-gems installs most needed gems for hackers.

Convert Haml templates to Slim templates.

A ruby gem for Uploading image to Hatena Fotolife

A Ruby library for talking to the HMRC Government Gateway. This provides a builder for creating classes that can generate the XML needed complete with type information and runtime validation.

Hide My Ass! fetches and connects to proxies at www.hidemyass.com

HighCarb can build a presentation based on HAML, Markdown or raw HTML

An RDoc template extracted from Ruby on Rails. Provides the same documetation style and format used for Ruby on Rails API documentation.

Convert HTML document to Microsoft Word document. This gem is in active development.

Ruby library for creating Docx from HTML output

Html2Feedbooks is script to automate basic publishing on feedbooks.com

Fast extensible html5 builder in pure Ruby