An open source JS tool for image analysis and comparison. A successor of PhantomCSS.

Robotium is an Android test automation framework that has full support for native and hybrid applications.

Checks web UI for browser compatibility (Compliance with Can I Use?)

Hoppscotch is an open-source API development ecosystem that helps you create and test your API requests saving precious time in development.

Gatling is a powerful open-source load testing solution that integrates with your development pipeline. It includes a web recorder and colorful reports.

Free & OpenSource REST API Testing Tool for all levels in a Test Pyramid