100% Private • Client-Side Analysis

Know Your Password'sTrue Strength

Advanced password analysis with breach checking, entropy calculations, and real-world attack simulations

Want a strong, memorable password? Try our Passphrase Generator for easy-to-remember yet secure passwords.

100% Private - Analysis Done in Your Browser

Your password never leaves your device. All analysis is performed locally using client-side JavaScript.

See the Difference: Password Comparison

Compare passwords side-by-side to understand what makes them strong or weak

What Makes a Password Strong?

Strong passwords combine length (16+ characters), randomness (high entropy), and avoid common patterns like dictionary words, keyboard sequences, or repeated characters. Consider using passphrases made of random words instead of complex character substitutions.

Note: This comparison is educational and illustrative. Real-world password security depends on many factors including unique passwords per site, two-factor authentication, and secure storage. Test your actual passwords with the full checker above for comprehensive analysis.

Password Strength Trends

Not enough data to show trends. Analyze at least 2 passwords to see your testing history chart.

Understanding Password Security

Learn about password entropy, attack methods, and best practices for creating strong passwords. Our education hub provides comprehensive guides on password security principles.

Frequently Asked Questions

Need to Check Multiple Passwords?

Try our Bulk Password Audit tool to analyze up to 50 passwords at once. Get aggregate statistics, identify duplicates, and receive prioritized recommendations.

Try Bulk Audit

Validate Against Compliance Standards

Test passwords against NIST, PCI DSS, HIPAA, or custom policies. Perfect for businesses, IT teams, and compliance professionals who need to ensure passwords meet organizational requirements.

Try Policy Validator

Want to Learn More?

Explore our education hub to understand entropy, attack methods, password vs passphrase comparisons, and best practices for password security.

Visit Education Hub

Related Security Tools

Explore our complete suite of security tools to strengthen your password security workflow

SecurePass Pro

Ultimate Security Generator Suite - Generate cryptographically secure passwords, passphrases, API keys, UUIDs, and more. Bulk generation with instant export.

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PassphraseForge

The Ultimate Passphrase Generator - Create memorable yet secure passphrases using dice rolls, word lists, and customizable separators. Perfect for human-friendly strong passwords.

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