Groonga-client gem supports HTTP or [GQTP (Groonga Query Transfer Protocol)](http://groonga.org/docs/spec/gqtp.html) as the protocol using a client.

Groonga-command is a library that represents [Groonga](http://groonga.org/)'s command. You can write a program that handle Groonga's command by using groonga-command.

Client library for GrooveHQ API.

Host gRPC-Web endpoints for Ruby gRPC services in a Rack or Rails app(over HTTP/1.1). Client included.

Gry generates `.rubocop.yml` automatically from your source code.

A Guard plugin for smarter Jekyll watching

Guard plugin for test kitchen

Guard::Motion automatically run your specs (much like autotest).

Guard::Pow automatically manage Pow applications restart

Guard::Reek automatically runs Reek when files change

Guard::Resque automatically starts/stops/restarts resque worker

Ruby Critic is a tool that listens to modifications in Ruby classes, modules and methods and reports any new code smells it finds.

Find anyone's email address

Rails GUS API library based on official REGON SOAP api.

Easily embed charts with Google Visualization API, using ruby formatted options in your view files

Ruby's interface of graphviz

C Bindings for Uber's H3 library

An easy to use interface for REST APIs that use HAL.

View helpers for Ruby applications

Use Handlebars.js client- and server-side