Password strength checker
See the entropy of your password and how long it would take to crack.
Your password is only checked in the browser and is never sent anywhere.
Enter the values to see the result.
How to use it
- 1Enter the password you want to check.
- 2See its security level and entropy.
- 3If it's weak, increase the length and character variety.
Worked examples
Sample calculation
The password "Ali1234" is weak, but a random 16-character password is rated very strong.
Frequently asked questions
Is my password sent anywhere?
No; all calculations are performed in the browser, and no data is sent.
What does entropy mean?
A measure in bits showing how hard a password is to guess; above 60 bits is considered good.