Password Strength Estimator
Test your password security and get detailed feedback. Learn how to create strong, memorable passwords that protect your accounts.
Test Your Password
Enter a password to evaluate its strength and security
Security Summary
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Password Tips
Security Assessment
Security Requirements Check
Password Requirements
Improvement Suggestions
Advanced Security Analysis
Pattern Analysis
Common Threats
Password Strength Examples
Strong Password Examples
Weak Password Examples
Password Security Best Practices
Creating Strong Passwords
- Length Matters: Aim for at least 12-16 characters. Longer passwords are exponentially harder to crack.
- Character Diversity: Use uppercase, lowercase, numbers, and special characters randomly.
- Avoid Patterns: Don't use sequential numbers, repeated characters, or keyboard patterns.
- No Personal Info: Avoid names, birthdays, addresses, or other easily discoverable information.
- Passphrases: Consider using a random combination of words that's easy to remember but hard to guess.
Password Management
- Unique Passwords: Use different passwords for every account to prevent credential stuffing attacks.
- Regular Updates: Change passwords periodically, especially after security breaches.
- Password Managers: Use reputable password managers to generate and store complex passwords securely.
- Two-Factor Authentication: Enable 2FA wherever possible for an additional security layer.
- Security Questions: Treat security questions like additional passwords - use random answers.
Password Security FAQs
How is password strength calculated?
Password strength is calculated based on multiple factors including length, character diversity, randomness, absence of common patterns, and resistance to dictionary attacks. We use entropy calculations and common password databases to provide a comprehensive assessment.
What makes a password truly secure?
A secure password is long (12+ characters), uses a mix of character types randomly, doesn't contain dictionary words or personal information, and is unique to each account. Passphrases combining multiple random words can be both secure and memorable.
Are password managers safe to use?
Reputable password managers are generally safe and significantly improve security. They use strong encryption, require a master password, and help you use unique, complex passwords for every account. The security benefits typically outweigh the risks when using trusted providers.
How often should I change my passwords?
Current best practices suggest changing passwords when there's evidence of compromise, not on a fixed schedule. However, for high-security accounts, consider changing every 3-6 months. Focus more on using strong, unique passwords than frequent changes.
What's the difference between entropy and password strength?
Entropy measures the randomness and unpredictability of a password in bits. Password strength combines entropy with other factors like resistance to common attacks and patterns. A password with high entropy but common patterns might still be weak against sophisticated attacks.