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

API Testing Platform that automatically generates unit test cases with dependency mocks from API calls

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

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

Simulate APIs, integrations, and environments at enterprise scale.

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