CodeNeat

Regex Tester for Password Strength

Your data never leaves your browser

Test password rules. Everything runs in your browser — critical for sensitive data.

Example

Pattern: ^(?=.*[a-z])(?=.*[A-Z])(?=.*\\d)(?=.*[@$!%*?&])[A-Za-z\\d@$!%*?&]{8,}$\n\nTest: P@ssw0rd!, weak
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Tips

  1. 1Lookaheads for character types.
  2. 2NIST recommends length over complexity.
  3. 3Allow long passphrases.

Frequently Asked Questions

Good regex?

Min 8 + lookaheads. Favor length.

Enough?

Also check breached-password databases.

Safe here?

Yes. 100% browser-side.