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.

Fully integrated API and web service testing capabilities that automate end-to-end functional API testing.

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

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.

Postman is an API platform for building and using APIs. Postman simplifies each step of the API lifecycle and streamlines collaboration so you can create better APIs—faster.

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