Password Strength Checker
Test your existing passwords for security weaknesses. Get instant feedback with complete privacy - your passwords never leave your device.
Real-time Analysis
Instant feedback as you type with comprehensive security scoring
Complete Privacy
All analysis happens locally - your passwords are never transmitted
Security Insights
Detailed breakdown of password strength with improvement recommendations
Password Strength Levels
Weak (0-2 points)
Password needs significant improvement
- • Too short (under 8 characters)
- • Missing character variety
- • Easily guessable patterns
Medium (3-4 points)
Acceptable but can be improved
- • Adequate length (8-12 characters)
- • Some character variety
- • Room for enhancement
Strong (5-6 points)
Excellent password security
- • Good length (12+ characters)
- • Full character variety
- • Highly secure
How We Score Password Strength
Length Requirements
- • 8+ characters: +1 point
- • 12+ characters: +1 additional point
- • Longer passwords are exponentially more secure
Character Variety
- • Lowercase letters (a-z): +1 point
- • Uppercase letters (A-Z): +1 point
- • Numbers (0-9): +1 point
- • Special characters (!@#$%): +1 point
Password Security Tips
✓ Do These
- • Use at least 12 characters
- • Mix uppercase, lowercase, numbers, and symbols
- • Use unique passwords for each account
- • Consider using a password manager
- • Enable two-factor authentication
✗ Avoid These
- • Personal information (birthdays, names)
- • Dictionary words or common phrases
- • Sequential characters (123456, abcdef)
- • Reusing passwords across sites
- • Sharing passwords with others
Your Privacy is Protected
Our password strength checker runs entirely in your browser. Your passwords are never sent to our servers, stored, or logged anywhere. Everything happens locally on your device for complete privacy.