SikuliX version 2.0.0+ (2019+)
State of the art mutation testing system for the JVM
Testing Kotlin and Java annotation processors, compiler plugins
Scalable open source load testing tool
Go library that makes it easier to write automated tests
Formatted output of timed sections in Julia
Python-based continuous integration testing framework
SoapUI is a free and open source cross-platform functional testing
Delightful JavaScript Testing
Testing for Developers. Toolkit that creates test-cases and data mocks
OS-agnostic, system-level binary package manager
Automatically mock your HTTP interactions to simplify testing
Supports tests, providing lightweight, throwaway instances of database
Find vulnerabilities, misconfigurations, secrets, SBOM in containers
Test Runner for JavaScript
A JavaScript Testing Framework
Write tests against structured configuration data
Development tools and libraries specialized for Angular
Install and run Python applications in isolated environments
Cucumber for Ruby
Coverage-guided, in-process fuzzing for the JVM
PerfView is a CPU and memory performance-analysis tool
NUnit 3 Framework
Thou Shalt Write Tests in Go
Bash automated testing system