JUnit vs Kotest

JUnit

6.0 #3 in Unit Testing Frameworks

About JUnit

Kotest

6.0 #4 in Unit Testing Frameworks

About Kotest
JUnitKotest
Free planYesYes
Free trialNoNo
Paid fromFreeFree
Open sourceNoNo
Platformsself-hostedAndroid, iOS, Linux, macOS, Web, Windows
Free planYesYes
Supported languagesJava, Kotlin, GroovyKotlin
Parameterized casesYesYes
Parallel executionYesYes
Built-in mocks—No
Snapshot testing—Yes
Property-based checks—Yes

Both are listed in Best Unit Testing Frameworks. On Inferse, JUnit scores higher on our published basis.