SoapUI is a free and open source cross-platform functional testing
Scalable open source load testing tool
Testing for Developers. Toolkit that creates test-cases and data mocks
State of the art mutation testing system for the JVM
Go library that makes it easier to write automated tests
Delightful JavaScript Testing
A JavaScript Testing Framework
A modern, C++-native, test framework for unit-tests, TDD and BDD
PerfView is a CPU and memory performance-analysis tool
Test Runner for JavaScript
Formatted output of timed sections in Julia
Find vulnerabilities, misconfigurations, secrets, SBOM in containers
OS-agnostic, system-level binary package manager
Cucumber for Ruby
Install and run Python applications in isolated environments
The Swift (and Objective-C) testing framework
Development tools and libraries specialized for Angular
Supports tests, providing lightweight, throwaway instances of database
Thou Shalt Write Tests in Go
A Coverage-Guided, Native Python Fuzzer
Automatically mock your HTTP interactions to simplify testing
The most advanced tool for HTTP API
Super-agent driven library for testing node.js HTTP servers
Fast, easy and reliable testing for anything that runs in a browser
NUnit 3 Framework