Password Strength Checker
Instantly analyze how secure your password is. All processing happens in your browser, so your input is never transmitted or stored anywhere.
Strength Checker
Need a stronger password?
Generate secure random passwords instantly
🔒 Privacy & Security
All passwords entered in this tool are processed entirely within your browser. Nothing is ever transmitted to any server, and no data is stored or sent anywhere. Feel confident checking your password strength with complete privacy.
What Makes a Strong Password?
- Sufficient length: At least 12 characters recommended.
- Mixed character types: Combine uppercase, lowercase, numbers, and symbols.
- Unpredictable: Avoid names, birthdays, and dictionary words.
Safe Password Management
Even strong passwords become weak when reused across sites.
- Use unique passwords for each service
- Consider using a password manager
- A strong password used long-term is better than frequent weak changes
🎯 Why Password Strength Matters
Cyber attackers use high-performance computers that can try billions of password combinations per second. Weak passwords can be cracked in seconds to minutes.
For example, a 6-character lowercase password has only about 300 million combinations and can be cracked in under a second by modern computers. However, a 12-character password with uppercase, lowercase, numbers, and symbols would take hundreds of years to crack.
Regularly checking your password strength and quickly changing weak passwords can significantly improve your account security.
⚠️ Common Password Mistakes
❌ Patterns to Avoid
- • Simple strings like "123456" or "password"
- • Your name or birthday
- • Keyboard patterns (qwerty, asdf, etc.)
- • Dictionary words as-is
- • Reusing the same password
✅ Recommended Patterns
- • Randomly generated strings
- • 12+ characters in length
- • Mix of uppercase, lowercase, numbers, symbols
- • Meaningless character sequences
- • Unique password for each service
✅ Password Security Best Practices
Use a Password Manager
Complex passwords are hard to remember. A trusted password manager helps you securely store and manage all your passwords while maintaining convenience.
Enable Two-Factor Authentication (2FA)
In addition to passwords, enable 2FA using SMS codes or authenticator apps to significantly enhance your account security.
Check for Data Breaches
Regularly check if your passwords have been exposed in past data breaches using services like Have I Been Pwned.
Watch Out for Phishing
Even the strongest password is useless if entered on a fake site. Always verify URLs and never click suspicious links.