Free Tool — 100% Local
How strong is your password?
Test your password strength instantly. Everything runs in your browser — your password is never sent anywhere.
At least 12 characters
Uppercase letter (A–Z)
Lowercase letter (a–z)
Number (0–9)
Symbol (!@#$…)
16+ characters (ideal)
Your password never leaves your device. All analysis happens locally in your browser.
Password tips
Length winsA 20-character password is exponentially harder to crack than a 10-character one.
PassphrasesFour random words strung together (correct-horse-battery-staple) are strong and memorable.
No personal infoAvoid names, birthdays, pet names — these are the first things attackers try.
Never reuseEach account needs its own unique password. Use a manager like Bitwarden.