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Entropy
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Crack Time
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Password Settings
16
Bulk Password Generator
Click "Generate Bulk" to create multiple passwords at once.
Password Strength Checker
Check the strength of your existing password (never submitted to any server)
Password Security Tips
✅ Use unique passwords for each account
✅ Use a password manager (Bitwarden, 1Password)
✅ Enable 2-factor authentication (2FA)
✅ Never share your password with anyone
❌ Don't use personal info (birthdate, name)
❌ Never reuse old passwords
FAQ
Is this password generator secure?
Yes! This generator uses the Web Crypto API (window.crypto.getRandomValues), which is cryptographically secure. Passwords are generated entirely in your browser and never sent to any server.
What is password entropy?
Entropy measures how unpredictable a password is. Higher entropy means stronger password. Formula: Entropy = log2(N^L) where N = character pool size and L = password length. Aim for 60+ bits.
How long should my password be?
Security experts recommend at least 12-16 characters for important accounts. For financial accounts, aim for 20+ characters. Longer passwords are exponentially harder to crack.