Enter a password to see an entropy estimate and practical strength rating, calculated entirely in your browser never sent anywhere.
Did this tool save you some time? A quick testimonial helps a lot.
Enter a password to see an entropy estimate and practical strength rating, calculated entirely in your browser never sent anywhere. Common questions — like is it safe to paste sensitive data into this tool — are answered in the FAQ below.
Add your input to the workspace above, review the result, then copy or download it when it's ready. No account or installation is required.
Password Strength Checker runs in your browser, so the information you enter stays on your device instead of being uploaded to a server.
A few worked examples so you know what to expect before you paste in your own input.
Input
(paste your security input above)
Output
Enter a password to see an entropy estimate and practical strength rating, calculated entirely in your browser never sent anywhere.
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