Password Strength Checker

Rates a password's strength based on length and the mix of lowercase, uppercase, digit, and symbol characters it contains.

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Rates a password's strength based on length and the mix of lowercase, uppercase, digit, and symbol characters it contains.

Use cases

  • Checking whether a new password meets common strength guidelines
  • Understanding why a password was flagged as weak

Examples

A strong password

P@ssw0rd123
{"strength": "very strong", "criteria_met": 5, "length": 11, "has_lower": true, "has_upper": true, "has_digit": true, "has_symbol": true}

FAQ

Is my data sent to a server?

Yes — the calculation runs on the server for this tool.

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