๐Ÿ› ๏ธ

๐Ÿ”Password Strength Checker

Check password strength online instantly. Estimate crack time and get improvement tips for stronger passwords.

Password Strength Checker

๐Ÿ”‘

Start typing a password to see its strength analysis.

๐Ÿ”’

All analysis happens locally in your browser. Your password never leaves your device.

About Password Strength Checker

The Password Strength Checker analyzes your password in real time and estimates how long it would take to crack using common attack methods. Get instant feedback on length, character variety, entropy, and common-pattern detection. The tool also suggests specific improvements and never transmits your passwordโ€”everything runs locally in your browser.

Features

  • Real-time password strength analysis
  • Estimated crack time for common attack methods
  • Detailed feedback on length, entropy, and character variety
  • Detects common patterns and dictionary words
  • 100% local processing - password never transmitted

Frequently Asked Questions

Is it safe to enter my real password?
Yes. The tool runs entirely in your browser using JavaScript. Your password is never sent to any server, logged, or stored. For maximum safety, you can also test with a similar password structure.
How is crack time estimated?
The tool calculates password entropy based on character set size and length, then estimates crack time assuming common hardware speeds for brute-force and dictionary attacks.