fast-check vs QuickCheck

fast-check

6.8 #3 in Property-Based Testing Tools

About fast-check

QuickCheck

6.9 #2 in Property-Based Testing Tools

About QuickCheck
fast-checkQuickCheck
Free planYesYes
Free trialNoNo
Paid fromFreeFree
Open sourceNoNo
Platformsapi, Linux, WebLinux
Free planYesYes
Supported languagesJavaScript, TypeScriptHaskell
Test runner supportJest, Mocha, Vitest, Ava, Bun, Deno, Node.js test runnerTest.SmallCheck.Drivers
Failing-case shrinkingYesYes
Stateful testingYesYes
Reproducible failuresYesYes

Both are listed in Best Property-Based Testing Tools. On The Geeks Club, QuickCheck scores higher on our published basis.