Henshin is a static site generator, with a plugin system and more

Issues recurring 'pings' to your Heroku apps and scales dynos up or down depending on pre-defined rules

Convert hex data to/from integer, and read/write Intel HEX File.

A Github issues importing tool

Hexagonal tiling in Ruby.

Hexpress is for Human Expressions, similar to Verbal Expressions

Mercurial (Hg) Toolkit

A Rails model layer for your Chef configuration. Control your Chef configs with Rails.

Tries to guess what values hiera will return for any existing node in your infrastructure

Configuration management gem.

hiki2latex is a format converter from hikidoc to latex, using hikidoc.

Support making docs from hiki to yard, wiki, on gem development directory.

Hillpace is a gem for running races planning. It can take a route an a reference pace (the pace you would go on a flat course of the same distance) and generate planned paces by segments, based on the incline of each segment.

Easily create hipchat bots that can respond to anything!

Quick 'n dirty histograms.

Client for accessing the Hive blockchain.

Rails compatible gem that provides full DB connection and models to HiveSQL.io

Binding to Natural Selection 2's Hive2 ELO system

Extend the core capabilities of Ruby!

Helper gem for HokceyApp API