Method
The checker scores visible password characteristics such as length and character variety locally in the browser.
Utilities / browser tool
Password Strength Checker
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.
Useful context
How it works
Use the calculator first, then scan the details below when you want more context about the inputs, result, or assumptions.
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.
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