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

Uptime Kuma is an easy-to-use self-hosted monitoring tool.

Get a beautiful status page in 10 seconds, without paying thousands of dollars!

Playwright enables reliable end-to-end testing for modern web apps.

Requestly is an open-source tool that simplifies API development, testing, mocking, and integration for developers and QAs.

Design, debug, and test APIs locally or in the cloud