The OWASP ZAP core project
OS-agnostic, system-level binary package manager
SoapUI is a free and open source cross-platform functional testing
Now continued as OculiX — see oculix.org
Headless Chrome Node.js API
A fast, high-level web crawling and web scraping framework
Complete Mandiant Offensive VM (Commando VM)
Privilege Escalation Awesome Scripts SUITE
A modern load testing tool, using Go and JavaScript
Desktop app for inspecting your React JS and React Native projects
Test automation made simple
This is the stress-ng upstream project git repository.
Scalable open source load testing tool
Install and run Python applications in isolated environments
Node.js Production Process Manager with a built-in Load Balancer
Super-agent driven library for testing node.js HTTP servers
Fastest feature-rich C++11/14/17/20 single-header testing framework
An alternative side effect model library for Redux applications
PerfView is a CPU and memory performance-analysis tool
HTTP load testing tool and library. It's over 9000!
Quick and Easy server testing/validation
Test data editor for Robot Framework
Headless Chromium-based web performance metrics collector
Visual diffing in CI for user interfaces
Testing for Developers. Toolkit that creates test-cases and data mocks