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

Automated robustness testing at the UI level

Orderly Ape is an open source (MIT) tool to run distributed and scalable k6 load tests on your own infrastructure using k6, kubernetes, grafana and influxdb.

Robot Framework is a generic open source automation framework. It can be used for test automation and robotic process automation (RPA).

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

Bruno is a Fast and Git-Friendly Opensource API client, aimed at revolutionizing the status quo represented by Postman, Insomnia and similar tools out there.