Test your password security instantly with our free online tool. Get real-time feedback on password strength, entropy calculation in bits, and estimated crack time. All processing happens locally in your browser for complete privacy.
Enter a password to check strength
At least 12 characters
Uppercase letter (A-Z)
Lowercase letter (a-z)
Number (0-9)
Special character (!@#$...)
No common patterns
0 Security Score
0 Entropy (bits)
— Time to Crack
🔒 Complete Privacy: Your password never leaves your browser. All calculations happen locally on your device - no data is sent to any server.
