Gatling is a powerful open-source load testing solution that integrates with your development pipeline. It includes a web recorder and colorful reports.

Hand-crafted lightweight Rest Client for testing APIs. Supports collections, environments, git collaboration and local storage.

k6 Open Source is designed for load testing. Extensible to support other types of testing.

Postman is an API platform for building and using APIs. Postman simplifies each step of the API lifecycle and streamlines collaboration so you can create better APIs—faster.

An open source JS tool for image analysis and comparison. A successor of PhantomCSS.

Browser and Mobile Automation Test Framework for Node.js