Password Strength Checker
Analyze your password strength and security. Get detailed feedback on password quality, vulnerability assessment, and recommendations for improvement.
Password Analysis
Detailed Analysis
Enter a password to see detailed security analysis
Password Security Guide
✓ Strong Password Practices
- • Use 12+ characters minimum
- • Include uppercase and lowercase
- • Add numbers and special characters
- • Avoid personal information
- • Use unique passwords for each account
- • Consider using a password manager
✗ Avoid These Mistakes
- • Dictionary words and common phrases
- • Personal information (names, dates)
- • Simple patterns (123, abc, qwerty)
- • Reusing passwords across sites
- • Short passwords (less than 8 chars)
- • Obvious substitutions (@ for a)
Attack Methods
- • Brute Force: Trying all combinations
- • Dictionary: Common words and phrases
- • Rainbow Tables: Pre-computed hashes
- • Social Engineering: Guessing personal info
- • Credential Stuffing: Reused passwords
Security Levels
- • Very Weak: Cracked instantly
- • Weak: Cracked in minutes/hours
- • Fair: Cracked in days/weeks
- • Good: Cracked in months/years
- • Strong: Cracked in decades
- • Very Strong: Practically unbreakable
Password Examples
Weak Passwords
Strong Passwords
Understanding Password Security
What Makes a Password Strong?
A strong password combines multiple factors: length, character variety, unpredictability, and resistance to common attack methods. It should be unique to each account and difficult for both humans and computers to guess.
The best passwords balance security with memorability, using techniques like passphrases or password managers to maintain both strong security and usability.
Common Password Vulnerabilities
Weak passwords are vulnerable to dictionary attacks, brute force attempts, social engineering, and credential stuffing from data breaches. Personal information in passwords makes them easier to guess through social media research.
Our analyzer checks for these common vulnerabilities and provides specific guidance on strengthening weak points in your password choices.
Privacy & Security
All password analysis happens entirely in your browser. No passwords are transmitted to external servers or stored anywhere. This tool is designed to help you understand password security without compromising your actual passwords. Always use this tool with test passwords or variations of your real passwords, never your actual login credentials.