Password strength checker
Estimate how strong a password is (entropy, time to crack). Nothing is sent anywhere.
How to use it
- Add your file or enter your values.
- Adjust the options if needed.
- Run it: the result appears at once and stays on your device.
FAQ
What is Password strength checker for?
Estimate how strong a password is (entropy, time to crack). Nothing is sent anywhere.
How do I use Password strength checker?
1. Add your file or enter your values. 2. Adjust the options if needed. 3. Run it: the result appears at once and stays on your device.
Is my data sent anywhere?
No, the calculation runs entirely in your browser.
Is Password strength checker free and unlimited?
Yes, no signup, no usage limit.
Which browsers are supported?
All modern browsers, on desktop and mobile.
Is the result accurate?
Calculations use standard formulas. For health, money or legal topics the result is indicative and does not replace professional advice.
Does Password strength checker work offline?
After a first visit, most tools keep working without a connection.