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Design & Utility

Password Strength Checker

Estimate a password's entropy and check it against common-password patterns — entirely in your browser, nothing is sent anywhere.

This runs entirely in your browser. Nothing you type is sent anywhere.

Very weak~0 bits of entropy
  • At least 12 characters
  • Contains a lowercase letter
  • Contains an uppercase letter
  • Contains a number
  • Contains a symbol
  • Not a commonly used password

Need a strong password?

Click generate to create one