Password Strength Test & Crack Time Estimator

Audit your existing passwords for entropy, length, character diversity, and vulnerability to common wordlist leaks — without anything leaving your browser.

Enter a password above to evaluate it
At least 8 characters
At least 12 characters (recommended)
Contains lowercase letters
Contains uppercase letters
Contains a number
Contains a special symbol
✓Not a known breached password
✓No obvious sequence (abcd, 1234, qwerty)
✓No long repeated-character runs

Generate a Strong Password

STOP REUSING PASSWORDS — USE A MANAGER
1Password
Generates and stores strong unique passwords for every site automatically.
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Dashlane
Password manager with built-in dark web breach monitoring.
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NordPass
Affordable password manager with secure sharing for teams/families.
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Affiliate disclosure: links above may earn us a commission — this never affects the calculation results above.

Best Practices & Use Cases

Security Audits

Audit personal and company passwords against modern security benchmarks (NIST 800-63B guidelines).

Frequently Asked Questions

Is it safe to test my real password here?

Yes. Our strength algorithm runs entirely on your local device via JavaScript. No data is stored, cached, or transmitted.

Other Password & Security Utilities

🔒 Random Password Generator🔒 Strong Password Generator (24+ Characters)🔒 Random PIN Generator (4 & 6 Digits)🔒 Memorable Passphrase Generator⚙️ Full Password Checker →
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