Puppeteer is a Node.js library which provides a high-level API to control Chrome/Chromium over the DevTools Protocol.

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.

Jest is a delightful JavaScript Testing Framework with a focus on simplicity.

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

Real API Design-first Development Platform Design. Debug. Test. Document. Mock. Build APIs Faster & Together.

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