Password Strength Analyzer

Analyzes a password you type and evaluates its length, character variety, sequences, keyboard patterns, repeated blocks, predictable dates, month names, and matches against a local list of common passwords, with a rating from VERY WEAK to VERY STRONG and concrete recommendations. The password is never sent to any server or saved; it never checks any data-breach database.

Processed on your device, no AI

Analyzed only in your browser; it's never sent, stored, or copied automatically.

Need a new password? Use the secure password generator.

The data is processed on your device and is never sent to the server.

Use cases

How to use this tool

  1. Type the password to analyze (it's never sent anywhere)
  2. Review the rating and the specific reasons
  3. Apply the recommendations or generate a new password

Frequently asked questions

Does it check whether my password appeared in a data breach?
No. This tool doesn't check any external breach database; it only analyzes local patterns (length, sequences, common words).
Is the estimated crack time exact?
No. It's an educational approximation that assumes a reference attack speed; a real attacker could be much faster or much slower.

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