Is my password stored?

No. The check runs in your browser and the value is not saved.

Entropy estimates how many guesses an attacker would need. Longer passwords and a wider character set both raise it.

Is a strong password enough?

Length and variety help, but turning on two-factor authentication protects an account even if the password is exposed.

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Security

Estimate password strength and entropy.

Free · no sign-up Instant results Nothing stored

Ready when you are

Free to use · No signup required

Input

Result

Output appears hereFill in the fields, run the tool, and the result shows up right here with a one-click copy button.

About this tool

Estimate how much entropy a password has from its length and character variety. The check runs locally and the password is not stored.

Learn more

Build safer password habits with long unique passwords, a password manager, multi-factor authentication, and a simple breach-response plan.