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

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

Requestly is an open-source tool that simplifies API development, testing, mocking, and integration for developers and QAs.

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

The World's first AI Driven Enterprise Software Reliability Platform