Password Checker
Use this for a password you are considering changing or retiring. Do not reuse passwords that appear in breach data.
No full password is sent to this site or to HIBP.
Enter a password to check its breach exposure.
Pwned Passwords check
See if a password has appeared in known breaches.
The browser hashes the password, sends only the first five SHA-1 characters to Have I Been Pwned, then checks the returned hash suffixes locally.