fast-check
7.1#1 in property-based testing toolsFree planFree planWebAPILinuxSelf-hosted
Visitfast-check vs Proptest
What both publish
| Fact | fast-check | Proptest |
|---|---|---|
| Purpose | fast-check is a property-based testing library for JavaScript and TypeScript that generates inputs, runs assertions over many cases, and shrinks failures to smaller counterexamples. | Proptest is a property testing framework for Rust inspired by Python’s Hypothesis framework. |
| Support | The project invites code and non-code contributions, community help, and financial support through GitHub Sponsors or OpenCollective. | Bug reports and questions are welcome through the project repository, and contributors are asked to include Rust version, Proptest version, and relevant operating-system details. |
fast-check plans
- fast-checkFree
Proptest plans
No prices published.
Pick fast-check if…
It suits JavaScript and TypeScript developers who want to check behavior across generated inputs, including stateful scenarios. Its runner-agnostic design can fit projects using a range of test runners.
Pick Proptest if…
Proptest may suit Rust developers who want generated tests, minimized failure cases, or state-machine testing. Those needing no_std or WebAssembly support should account for the listed limitations.