Password Strength Checker
Estimate how strong a password is and how long it would take to crack.
How it works
The check runs entirely in your browser — nothing is transmitted. Strength is estimated from length, character variety and entropy.
Frequently asked questions
Is my data private?
Yes. The Password Strength Checker runs entirely in your browser. Nothing you enter is uploaded, saved to a server, or shared — it never leaves your device.
Is the Password Strength Checker free?
Yes, it is completely free with no sign-up, no limits and no watermarks. Like every tool on security & privacy and the rest of the platform, you can use it as often as you like.
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