NUnit 3 Framework
Now continued as OculiX — see oculix.org
Go library that makes it easier to write automated tests
State of the art mutation testing system for the JVM
Delightful JavaScript Testing
SoapUI is a free and open source cross-platform functional testing
A modern, C++-native, test framework for unit-tests, TDD and BDD
Scalable open source load testing tool
PerfView is a CPU and memory performance-analysis tool
OS-agnostic, system-level binary package manager
Development tools and libraries specialized for Angular
Formatted output of timed sections in Julia
Find vulnerabilities, misconfigurations, secrets, SBOM in containers
Testing for Developers. Toolkit that creates test-cases and data mocks
A JavaScript Testing Framework
Supports tests, providing lightweight, throwaway instances of database
Thou Shalt Write Tests in Go
Fast, easy and reliable testing for anything that runs in a browser
HTTP checks & tests (private & public) monitoring
A Coverage-Guided, Native Python Fuzzer
The most advanced tool for HTTP API
Super-agent driven library for testing node.js HTTP servers
Open source eCommerce platform on Symfony
Macro(s) for vectorizing loops
Headless Chromium-based web performance metrics collector