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.

Swagger UI allows anyone — be it your development team or your end consumers — to visualize and interact with the API’s resources without having any of the implementation logic in place

Simulate APIs, integrations, and environments at enterprise scale.

Design, debug, and test APIs locally or in the cloud

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