* [WebHook Tester v2.3.0](https://github.com/tarampampam/webhook-tester) – Tool to test and debug webhooks and HTTP requests with customizable response codes, headers, delays, and real-time WebSocket notifications.

* [Test262 web-features-manifes...](https://github.com/tc39/test262) – ECMAScript conformance test suite covering language, internationalization, and JSON specifications.