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

Test, scrape, generate, and automate without the pain and expense of hosting your own headless browsers.

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

API Testing Platform that automatically generates unit test cases with dependency mocks from API calls

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

Swagger UI allows anyone — be it your development team or your end consumers — to visualize and interact with the API’s resources without having any of the implementation logic in place