Password Check
How it Works
This tool uses the k-Anonymity model to securely check your password against the Have I Been Pwned database.
- Your password is hashed locally using SHA-1.
- Only the first 5 characters of the hash are sent to the API.
- The API returns a list of all breached hashes starting with those 5 characters.
- The full comparison happens locally in your browser.
Your full password and hash never leave this device.
$
npm install
check-pwnedpasswords