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

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

Automated robustness testing at the UI level

k6 Open Source is designed for load testing. Extensible to support other types of testing.

The worlds most widely used web app scanner.

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.