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.

Performance testing with Flood increases customer satisfaction and confidence in your production apps and reduces business risk.

Realistic performance testing with unrivaled reporting. Develop locally, scale globally, and retain full access to all your data. 100% Open Source.

Locust is an open source performance/load testing tool for HTTP and other protocols. Its developer-friendly approach lets you define your tests in regular Python code. Locust tests can be run from command line or using its web-based UI

The Complete Continuous Testing Platform Any test. Any device. App quality without limits.

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