Password Strength Checker
Analyze password strength in real-time based on length, complexity, entropy, and common vulnerabilities. Get detailed feedback to improve password security.
Password Security Guidelines
✓ Good Practices
- • Use at least 12 characters
- • Mix uppercase and lowercase letters
- • Include numbers and special characters
- • Use unique passwords for each account
- • Consider using passphrases
- • Enable two-factor authentication
- • Use a password manager
✗ Avoid These
- • Common passwords (password123)
- • Personal information (birthdate, name)
- • Sequential characters (abc, 123)
- • Repeated characters (aaa, 111)
- • Dictionary words alone
- • Keyboard patterns (qwerty)
- • Reusing passwords across sites
Test Passwords
Note: These are example passwords for testing the analyzer. Always create unique, strong passwords for your actual accounts.
About Password Strength Checker
An advanced password strength analyzer that evaluates password security using multiple criteria including length, complexity, character diversity, entropy calculation, and vulnerability to common attack methods. This tool provides real-time feedback and actionable recommendations to improve password security.
Why use a Password Strength Checker?
Strong passwords are the first line of defense against cyber attacks, but many users create weak passwords without realizing their vulnerabilities. This tool educates users about password security best practices while providing immediate feedback, helping create robust passwords that resist brute force attacks and common hacking techniques.
Who is it for?
Valuable for individual users creating secure passwords, security administrators implementing password policies, developers building authentication systems, and cybersecurity professionals educating others about password security. Perfect for anyone who wants to understand and improve their password security posture.
How to use the tool
- Type your password into the secure input field (never stored or transmitted)
- Review the real-time strength score and detailed security analysis
- Read specific recommendations for improving password complexity
- Check entropy calculations and resistance to common attack methods
- Implement suggested improvements to create a stronger, more secure password
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