Password Strength Tester

Yes, everything runs locally in your browser and nothing is sent anywhere. That said, it’s still best practice to avoid entering real passwords and instead use a similar dummy password.

A strong password is at least 16 characters long and uses a mix of letters, numbers, and symbols. It’s recommended to use a password generator to create strong and unique passwords.

We estimate entropy based on character variety and length, then simulate brute-force attacks using the selected hardware speed.