fast-checkv4.10.2, 19 Sept 2026
Property based testing framework for JavaScript (like QuickCheck)
$ npm install fast-check| Metric | fast-check | rewire | Difference |
|---|---|---|---|
| Weekly downloads | 30,040,703 | 509,192 | fast-check 59.0x higher |
| 12-month download growth | +535% | +16% | fast-check +519 pts |
| Gzip size | - | - | - |
| Minified size | - | - | - |
| Dependencies | 1 | 2 | rewire 1 more |
| Unpacked size | 1.5 MB | 24 kB | rewire 62.5x smaller |
| Latest release | 4.10.2, 19 Sept 2026 | 9.0.1, 15 Aug 2025 | fast-check 13 months more recent |
| Releases, last 12 months | 12 | 0 | fast-check 12 more |
| First published | 28 Dec 2017 | 4 Jun 2012 | rewire 5.6 years earlier |
| GitHub stars | 5,155 | 3,090 | fast-check 1.7x higher |
| Open issues | 58 | 48 | fast-check 10 more |
| Open pull requests | 18 | 3 | fast-check 15 more |
| Contributors | - | - | - |
| Commits, last 52 weeks | 896 | 2 | fast-check 448.0x higher |
| TypeScript types | Bundled | None | Differs |
| Module format | ESM + CommonJS | CommonJS | Differs |
| Runtimes | - | - | - |
| License | MIT | MIT | Same |
Green marks the smaller size or the more recent release. Bold marks the higher count, with no judgement implied. Sizes are for the whole package per Bundlephobia. Growth compares the average of the last 4 weeks with the first 4 weeks of the 52-week series.
fast-check29.9m latest weekrewire509.2k latest week
Week of 23 Sept 2025Week of 15 Sept 2026
fast-check
Major versions
- 0.0.128 Dec 2017
- 1.0.021 Apr 2018
- 2.0.025 Jul 2020
- 3.0.025 May 2022
- 4.0.010 Mar 2025
Last 5 releases
- 4.10.219 Sept 2026
- 4.10.115 Sept 2026
- 4.10.011 Sept 2026
- 4.9.08 Jul 2026
- 4.8.011 May 2026
195 releases in total, 12 in the last 12 months
rewire
Major versions
- 0.1.04 Jun 2012
- 1.0.020 Aug 2012
- 2.0.030 Sept 2013
- 3.0.011 Nov 2017
- 4.0.09 Apr 2018
- 5.0.011 Mar 2020
- 6.0.019 Dec 2021
- 7.0.013 Aug 2023
- 8.0.03 Jun 2025
- 9.0.08 Jul 2025
Last 5 releases
- 9.0.115 Aug 2025
- 9.0.08 Jul 2025
- 8.0.03 Jun 2025
- 7.0.013 Aug 2023
- 6.0.019 Dec 2021
48 releases in total, 0 in the last 12 months
fast-check
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rewire
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fast-check
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rewire
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- Need both ESM and CommonJS entry pointsfast-check (fast-check: ESM + CommonJS; rewire: CommonJS)
- Need to load it with require()Both
- Need TypeScript types in the package itselffast-check (fast-check: Bundled; rewire: None)
- Node.js version requirementfast-check: >=12.17.0; rewire: none declared (engines field in package.json)
- Need the more recent releasefast-check (4.10.2 on 19 Sept 2026 vs 9.0.1 on 15 Aug 2025)
- Higher weekly npm downloadsfast-check (30m vs 509.2k)
Each line is generated from the data above.
- rewire vs ng-mocksNo search data
fast-check: fast-check npm registry, fast-check npm downloads, fast-check GitHub, fast-check jsDelivr. Data fetched 25 Sept 2026.
Indexability: Indexed.