Free tool
Has your password been leaked?
Enter any password and we check it against 700+ million breached passwords in real time. Your password is hashed locally and never leaves your browser — only the first 5 characters of the hash are sent to the API.
Password Checker
Has Your Password Been Leaked?
Check if your password has appeared in any known data breach. We use the HaveIBeenPwned Passwords API with k-anonymity — your password never leaves your browser.
Your password never leaves your browser. We SHA-1 hash it locally and only send the first 5 characters of the hash to the API. This "k-anonymity" model makes it impossible for anyone — including the API — to determine your actual password.
Results
Enter a password and press Check
Results will appear here