Security

Password Strength Checker

Enter a password to see an entropy estimate and practical strength rating, calculated entirely in your browser never sent anywhere.

Password
At least 12 characters
Contains lowercase letters
Contains uppercase letters
Contains numbers
Contains symbols
Estimate
Strength
Entropy
Character set size
Est. offline crack time

Everything is calculated locally in your browser as you type. Your password is never sent anywhere, not even for this check. Crack-time is a rough estimate, not a guarantee.

Frequently Asked Questions

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