Free tool
Strength validator.
Type a password to see how strong it is. Evaluated entirely in your browser.
Checked in your browser · nothing sent anywhere
How it works
Length beats complexity.
Password strength is measured in entropy — the number of guesses an attacker would need to try. A 20-character passphrase is stronger than an 8-character symbol-laden one. The single best thing you can do is make it longer.
Stop guessing.
Just generate one.
14-day free trial. No credit card. Cancel any time.