Adds common gamification features such as points, leaderboards, and achievements to a Rails Application.

Simplify the implementation of consistent services within an API-based software platform.

Derive DateTime from Time expression with Natural language (STILL ONLY IN JAPANESE)

Calculate the horoscope of a person given the birth date and time

Horza is a shapeshifter that provides common inputs and outputs for your ORM

Hosts is a Ruby library able to read or manipulate the operating system's host files. When manipulating it tries to preserve their original formatting.

Flexible connection pooling for Ruby.

HPE 3PAR Software Development Kit for Ruby

A <hr /> tag for your terminal

Prepends 'http://' to what appears to be absolute links that are missing a protocol. For example: "www.example.com/some/path" can be assumed to mean "http://www.example.com/some/path"

HSLuv is implemented as a set of functions to convert colors between RGB, HSLuv and HPLuv.

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

Ruby library for creating Docx from HTML output

Ruby gem to test for valid HTML5 markup with RSpec

A small collection of utilities to ease working with hashes of HTML attributes

Fast extensible html5 builder in pure Ruby

Massages HTML how you want to: sanitize tags, remove headers and footers; output to html, markdown, or plain text.

Ruby wrapper for kangax js library html-minifier. If you want pure ruby use html_press

Render Markdown via HTML::Pipeline in Rails.

The html-table library provides an interface for generating HTML tables in a syntax comfortable to Ruby programmers, but with some enforcement of where certain elements can be placed.