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

RapidAPI for Mac is a full-featured HTTP client that lets you test and describe the APIs you build or consume. It has a beautiful native macOS interface to compose requests, inspect server responses, generate client code and export API definitions.

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

Selenium automates browsers. That's it! What you do with that power is entirely up to you.

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

Professional software tool for HTTP testing and debugging