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

Output plugin to ship logs to a Grafana Loki server

Hashdiff is a diff lib to compute the smallest difference between two hashes.

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.

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.

PDF::Core is used by Prawn to render PDF documents

You can prove anything with facts!

A plugin for RuboCop code style enforcing & linting tool. It includes Rubocop configuration used at Airbnb and a few custom rules that have cause internal issues at Airbnb but are not supported by core Rubocop.

Cucumber Generator and Runtime for Rails

RMagick is an interface between Ruby and ImageMagick.

Run Selenium tests more easily with install and updates for all supported webdrivers.

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

Slack Web and RealTime API client.

Licensee automates the process of reading LICENSE files and compares their contents to known licenses using a fancy maths.

GitLab style guides and shared style configs.

Gives letter_opener an interface for browsing sent emails

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

PgSearch builds Active Record named scopes that take advantage of PostgreSQL's full text search

gitlab-license helps you generate, verify and enforce software licenses.