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Runs locally in your browser

Password Strength Checker

Estimate password strength without transmitting it.

Enter a password

  • Use 14 or more characters.
  • Prefer a unique passphrase; do not reuse passwords.
  • This estimate cannot detect every leaked password.

About this Password Strength Checker tool

Password Strength Checker processes your input locally in this browser. Nothing entered into this tool is sent to Duck Cloud servers.

How to use it

  1. 1Paste or type your input in the tool.
  2. 2Select the action button or use the displayed keyboard shortcut.
  3. 3Review the result, then copy it or clear the tool.

Example

Use the sample already provided in Password Strength Checker, or replace it with your own input.

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