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

Hoppscotch is an open-source API development ecosystem that helps you create and test your API requests saving precious time in development.

Testing and validating REST services in Java is harder than in dynamic languages such as Ruby and Groovy. REST Assured brings the simplicity of using these languages into the Java domain.

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

Playwright enables reliable end-to-end testing for modern web apps.

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.