local-only

Password Strength Tester

Score passwords and see how to improve them.

🔒 local memory only
Initializing Password Strength Tester in local browser environment…

How to use Password Strength Tester

  1. Type a password into the test field.
  2. Review the real-time visual strength meter and score (Weak, Fair, Good, Excellent).
  3. Inspect the checklist for character variety, common dictionary word flags, and estimated entropy bits.

Why use this local-first tool?

  • Comprehensive entropy and pattern evaluation testing length, character sets, repetition, and sequences.
  • Checks against top common breach passwords.
  • 100% confidential — your test password is never transmitted across the network.

Frequently Asked Questions

Is it safe to test real passwords here?

Yes. The evaluation script is entirely local JavaScript running in your browser tab. No network packets are sent when you type.

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