Checks web UI for browser compatibility (Compliance with Can I Use?)

Best "simple" screen capturing app (Mac and Windows) because it creates animated gifs that attach to bugs easily. Simple because it works a lot like snippy to capture screen areas

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

Simple animated GIF screen recorder with an easy to use interface.

Achieve effortless quality with zero coding, zero maintenance, and the autonomous power of the world's first open-source testing agent.

The Apache JMeter™ application is open source software, a 100% pure Java application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions.