PassBreach

Has this password been leaked?

Type a password → free check. Full password never leaves your device.

More details · privacy
Privacy first. Your password is hashed in this browser (SHA-1). Only the first 5 characters of that hash go to Have I Been Pwned’s free range API. The full password and full hash never leave your device.
  1. Hash the password in your browser
  2. Send only a 5-character hash prefix (k-anonymity)
  3. Compare suffixes locally — HIBP never sees the full hash

Also try crack-time estimator · password generator

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