Package
zxcvbn
realistic password strength estimation
Key numbers
As of 25 Sept 2026
- Weekly downloads
- 1.1m
- +61% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 0
- Direct, from package.json
- Last release
- 9 years ago
- v4.4.2
- GitHub stars
- 16.1k
- 1k forks
- Open issues / PRs
- 120 / 26
- Contributors
- -
- Commits, last 52 weeks
- 0
Downloads
Last week 2026-09-15 to 2026-09-21
1,086,644 downloads last week, 5,501,287 in the last month. The 12-month change of +61% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- 023 in total
- Latest version
- 4.4.2, 7 Feb 20179 years ago
- First published
- 1 Dec 2012
- Last push to GitHub
- 19 Aug 2024766 days before the snapshot
- Repository archived
- No
- Open issues
- 120
- Open pull requests
- 26
- Commits, last 52 weeks
- 0
- Dependents on npm
- 498
Major versions
- v4 first release 4.0.1, 24 Oct 2015
- v3 first release 3.0.0, 8 Aug 2015
- v2 first release 2.0.1, 23 Jul 2015
- v1 first release 1.0.0, 1 Dec 2012
Recent releases
| Version | Published |
|---|---|
| 4.4.2 | 7 Feb 2017 |
| 4.4.1 | 31 Oct 2016 |
| 4.4.0 | 24 Sept 2016 |
| 4.3.0 | 4 May 2016 |
| 4.2.0 | 20 Nov 2015 |
| 4.1.1 | 30 Oct 2015 |
| 4.1.0 | 29 Oct 2015 |
| 4.0.1 | 24 Oct 2015 |
| 3.5.0 | 24 Sept 2015 |
| 3.4.0 | 9 Sept 2015 |
| 3.3.1 | 6 Sept 2015 |
| 3.3.0 | 5 Sept 2015 |
| 3.2.2 | 23 Aug 2015 |
| 3.2.1 | 23 Aug 2015 |
- Module format
- CommonJSFrom package.json type, main and exports fields
- TypeScript types
- None
- Node.js engine range
- Not declared
- Runtimes
- -
- Unpacked size (npm)
- -
- Dependencies (0)
- None
npm install zxcvbnCDN
jsDelivr: 940.3k requests in 30 days
- jsDelivr
https://cdn.jsdelivr.net/npm/zxcvbn@4.4.2/ - unpkg
https://unpkg.com/zxcvbn@4.4.2/ - esm.sh
https://esm.sh/zxcvbn@4.4.2
| Package | Weekly downloads | Gzip | Last release | Module | Comparison |
|---|---|---|---|---|---|
| @zxcvbn-ts/core | 984.6k | - | 1 month ago | ESM + CommonJS | zxcvbn vs @zxcvbn-ts/core |
| sasl-plain | 19.7k | - | 13 years ago | CommonJS | - |
| sasl-scram-sha-1 | 15.2k | - | 6 months ago | CommonJS | - |
| sasl-anonymous | 15.1k | - | 13 years ago | CommonJS | - |
| secure-web-token | 81.3k | - | 3 months ago | ESM + CommonJS | - |
| @aparajita/capacitor-biometric-auth | 161.2k | - | 7 months ago | ESM + CommonJS | - |
Indexability: Indexed.