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zxcvbn

v3.1.1 Stable

An entropy-based password strength estimator, originally for Javascript by Dropbox.

MIT Edition 2021 MSRV 1.66

Quick Verdict

  • โœ“Actively maintained (updated 31d ago)
  • โœ“Stable API (3.x for 9+ years)
  • โœ“Trusted by 562 crates
  • โœ“Permissive license (MIT)

Security

Checking security advisories...
Downloads
9.7M
Dependents
562
Releases
30
Size
436KB

Deep Insights

๐Ÿ“Š
Stable downloads

559.1K downloads in the last 30 days (18.6K/day). Volume is roughly flat compared to the previous period.

๐Ÿ”—
Moderate adoption

562 crates depend on zxcvbn. Reasonable ecosystem adoption, though not yet a core dependency.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 52 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

โœ…
Stable for 9+ years

The API has been stable (1.x) for over 9 years with 30 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐ŸŒŸ
Used by top crates

Notable dependents include async-graphql, broker, genpass, sos, bitwarden-core. When high-quality crates choose zxcvbn, it's a strong quality signal.

Health Breakdown

Maintenance 16/25

Recency, release consistency, active ratio

Quality 18/25

Yanked ratio, deps, size, maturity, features

Community 8/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 15/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
22K/day avg-35%
010K20K30K40K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v3.1.0
67%
v2.1.2
20%
v2.2.2
7%
v2.1.1
4%
v2.2.1
2%

Release Timeline

10 releasessince 2020
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2020
2
2021
1
2022
2
2023
1
2024
3
2025
2026
1
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Feature Flags

default =["builder"]

serbuilder*custom_wasm_env

README

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Maintainers

Dependencies
17
direct dependencies
Dependents
562
crates depend on zxcvbn