Local Password Breach Checker - Online k‑Anonymity
Tell if your password has appeared in data breaches without sending the full password. Uses hash prefix locally.
UD5 Toolkit
Tell if your password has appeared in data breaches without sending the full password. Uses hash prefix locally.
Check if a password appears in the Have I Been Pwned database using k‑Anonymity. Only the first 5 characters of the hash are sent.