Hallon allows you to write Ruby applications utilizing the official Spotify C API.

Parse the texts out of the haml files into localization files

A recipe microformat parser.

Interact with the Harvest API v2.0 from your Ruby application

A command line hash identifying tool and checking library.

A Ruby client for Hawkular

Ruby helpers for hCaptcha

A simple way to check your app heart.

Beat Heroku's 60s boot timeout with a forward proxy.

Manage multiple Heroku instances/apps for a single Rails app using Rake. It's the Capistrano for Heroku, without the suck.

String extensions to convert binary data to / from human readable hex tuples.

A simple tool to check a bunch of email addresses against the Have I Been Pwned? API.

Unicode support for hirb

Provides abstractions to handle HTTP1 and HTTP2 protocols.

Sign and verify HTTP messages

Adds the humanize method for true and false to provide 'Yes' and 'No' respectively. humanize supports i18n translations too so it can be used in internationalized rails apps.

Derivative generation plugin for hydra

An implementation of the HyperLogLog set cardinality estimation algorithm in Ruby using Redis as a back-end

GEM providing helper scripts to manage i18n translations in Google Docs. Features: check YAML files for missing translations; export YAML files to CSV; download translations from multiple Google spreadsheets and store to YAML files

ibanizator generates the correct IBAN for given account number and bank number for german accounts. It is possible to validate given international IBANS. Calculates also the BIC and bank names for given german bank codes.