Built for developers and testers alike, SoapUI is the only open source tool that covers the entire testing spectrum (functional, security, load, mocking).

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

Test, scrape, generate, and automate without the pain and expense of hosting your own headless browsers.

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

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.

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.