YATTIE exists to help make tester's lives easier. Ideally, it should remove friction from the exploratory testing process - everywhere from gathering evidence to submitting reports.

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

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.

Unifying API testing, API Performance testing, API Mocks and UI testing.

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

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