fast-check vs Racket QuickCheck

fast-check

8.1 #1 in Property-Based Testing Tools

About fast-check

Racket QuickCheck

4.8 #27 in Property-Based Testing Tools

About Racket QuickCheck
fast-checkRacket QuickCheck
Free planYesNo
Free trialNoNo
Paid fromFree—
Open sourceNoNo
Platformsapi, Linux, Web—
Free planYesYes
Supported languagesJavaScript, TypeScriptRacket
Test runner supportJest, Mocha, Vitest, Ava, Bun, Deno, Node.js test runnerRackUnit
Failing-case shrinkingYesNo
Stateful testingYes—
Reproducible failuresYes—

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