Selenium implements the W3C WebDriver protocol to automate popular browsers. It aims to mimic the behaviour of a real user as it interacts with the application's HTML. It's primarily intended for web application testing, but any web-based task can automated.

Capybara is an integration testing tool for rack based web applications. It simulates how a user would interact with a website

Track changes to your models, for auditing or versioning. See how a model looked at any stage in its lifecycle, revert it to any version, or restore it after it has been destroyed.

Behaviour Driven Development with elegance and joy

New Relic is a performance management system, developed by New Relic, Inc (http://www.newrelic.com). New Relic provides you with deep information about the performance of your web application as it runs in production. The New Relic Ruby agent is dual-purposed as a either a Gem or plugin, hosted on https://github.com/newrelic/newrelic-ruby-agent/

Shared classes and tests for fog providers and services.

software to fetch configuration from network devices and store them

A Ruby CLI gem that beautifies the terminal's ls command, with color and font-awesome icons.

Faraday middleware for AWS Signature Version 4 using aws-sigv4.

Core library for the Cucumber BDD app

RubyCritic is a tool that wraps around various static analysis gems to provide a quality report of your Ruby code.

Search Engine Optimization (SEO) plugin for Ruby on Rails applications.

Watir stands for Web Application Testing In Ruby It facilitates the writing of automated tests by mimicing the behavior of a user interacting with a website.

i18n-tasks helps you find and manage missing and unused translations. It analyses code statically for key usages, such as `I18n.t('some.key')`, in order to report keys that are missing or unused, pre-fill missing keys (optionally from Google Translate), and remove unused keys.

GitLab style guides and shared style configs.

Cucumber Generator and Runtime for Rails

The push notification service for Ruby.

Cucumber Expressions - a simpler alternative to Regular Expressions

Command-line tool for guessing which spec files are relevant to a set of input file paths.

OpenTracing Tracer implementation for Jaeger in Ruby