fast-check vs RapidCheck

fast-check

7.2 #1 in Property-Based Testing Tools

About fast-check

RapidCheck

5.5 #9 in Property-Based Testing Tools

About RapidCheck
fast-checkRapidCheck
Free planYesNo
Free trialNoNo
Paid fromFree—
Open sourceNoNo
Platformsapi, Linux, WebLinux, self-hosted, Windows
Free planYesYes
Supported languagesJavaScript, TypeScriptC++
Test runner supportJest, Mocha, Vitest, Ava, Bun, Deno, Node.js test runnerBoost Test, Google Test, Google Mock, Catch.hpp
Failing-case shrinkingYesYes
Stateful testingYesYes
Reproducible failuresYesYes

Both are listed in Best Property-Based Testing Tools. On Inferse, fast-check scores higher on our published basis.