Hypothesis vs QCheck

Hypothesis

6.9 #2 in Property-Based Testing Tools

About Hypothesis

QCheck

6.6 #8 in Property-Based Testing Tools

About QCheck
HypothesisQCheck
Free planNoYes
Free trialNoNo
Paid from—Free
Open sourceNoNo
PlatformsLinux, macOS, Windows—
Free planYesYes
Supported languagesPythonOCaml
Test runner supportpytest, unittestQCheck_base_runner, QCheck_runner, OUnit, Alcotest
Failing-case shrinkingYesYes
Stateful testingYesYes
Reproducible failuresYes—

Both are listed in Best Property-Based Testing Tools. On Specifiction, Hypothesis scores higher on our published basis.