Method
The checker scores visible password characteristics such as length and character variety locally in the browser.
Utilities / browser tool
Password Strength Checker
Check how strong a password is, entirely in your browser.
Local analysis only. Nothing leaves your device.
Your inputs stay on your device
Check password strength
live resultEnter a password above to see an instant strength analysis.
Analysis happens entirely in your browser. The password is never sent anywhere.
Context & Reference
How it works
Calculators are most useful when their assumptions are clear. Review these details to better understand the logic behind the results.
How to use it
Enter or paste a password only if you are comfortable doing so locally, then review the score and suggestions.
Understand the result
The score is a heuristic about the entered pattern, not proof that a password is safe.
Example
A long unique passphrase can be stronger than a short string with many symbols.
Notes
Nothing is sent by this tool, but do not enter a password that is currently protecting an important account.
Useful next steps
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