Password Strength Checker
Analyze your password security and crack time estimation
Input Password
About Password Strength
This tool uses the zxcvbn algorithm created by Dropbox to estimate password strength. It doesn't just check for length and special characters; it actively searches for common dictionary words, names, patterns (like '123456' or 'qwerty'), and common substitutions (like 'P@ssw0rd').
Your password is tested locally in your browser and is never sent over the internet.