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

A browser extension and Ruby gem to improve the debugging experience when testing Rails applications

Supercharge team collaboration by sharing screen capture, logs, and debugging information from local development.

Sonic is a platform that integrates remote control debugging and automated testing of mobile devices, and strives to create a better user experience for global developers and test engineers.

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.

Free & OpenSource REST API Testing Tool for all levels in a Test Pyramid