Password Strength Checker
Test how strong your password is. We check length, complexity, common patterns, and estimate how long it would take to crack.
Your password never leaves your browser — all analysis is done locally.
What Makes a Strong Password?
A strong password should be at least 12 characters long and include a mix of uppercase letters, lowercase letters, numbers, and special characters. Avoid using common words, names, or predictable patterns like "123456" or "password".
The best passwords are random and unique for each account. Consider using a password manager to generate and store complex passwords securely. Never reuse passwords across multiple accounts — if one gets compromised, all your accounts become vulnerable.
Tips for Creating Strong Passwords
- Use a passphrase: combine 4-5 random words (e.g., "correct horse battery staple")
- Add numbers and symbols between words
- Never use personal information (birthdays, pet names)
- Use a different password for each service
- Enable two-factor authentication whenever possible
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