Free
Jest
Open SourceUnit & Component · Testing
Delightful JavaScript testing framework with snapshots and mocks.
unittestingjavascript
Testing
Unit, E2E, load, accessibility and visual regression testing.
7 tools in Testing
Free
JUnit
Open SourceUnit & Component · Testing
The standard testing framework for the JVM: annotation-driven unit tests for Java and Kotlin.
testingjavajvmunit-testing
Free
Mocha
Open SourceUnit & Component · Testing
Flexible Node.js test framework that pairs well with Chai.
unittestingnode.js
Free
pytest
Open SourceUnit & Component · Testing
The de-facto testing framework for Python: plain asserts, powerful fixtures and a rich plugin ecosystem.
testingpythonunit-testingframework
Free
Testcontainers
Open SourceUnit & Component · Testing
Throwaway Docker containers for reliable integration tests.
integrationdockertesting
Free
Testing Library
Open SourceUnit & Component · Testing
Test UI the way users interact with it; simple, complete bindings.
unittestingreactdom
Free
Vitest
Open SourceUnit & Component · Testing
Fast, Vite-native unit test framework with Jest-compatible API.
unittestingvitejavascript