SikuliX version 2.0.0+ (2019+)
State of the art mutation testing system for the JVM
Scalable open source load testing tool
Delightful JavaScript Testing
Go library that makes it easier to write automated tests
SoapUI is a free and open source cross-platform functional testing
OS-agnostic, system-level binary package manager
Testing for Developers. Toolkit that creates test-cases and data mocks
Test Runner for JavaScript
Formatted output of timed sections in Julia
Development tools and libraries specialized for Angular
Find vulnerabilities, misconfigurations, secrets, SBOM in containers
Cucumber for Ruby
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
The Swift (and Objective-C) testing framework
PerfView is a CPU and memory performance-analysis tool
Install and run Python applications in isolated environments
A Coverage-Guided, Native Python Fuzzer
Write tests against structured configuration data
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