Free tools

Password Breach Checker.

Instantly check whether your password appears in known data breaches. Your password never leaves this page.

Free · $0Password Breach Checker · no sign-up, runs in your browser

Your password never leaves your device: only the first 5 characters of its SHA-1 hash are sent to Have I Been Pwned (k-anonymity).

Password Test: How Secure Is My Password? · See how secure your password is and how long it would take to crack.

What should you do if your password was leaked?

  • Change it right away on every account where you use it.
  • Use a different long, random password for every account.
  • Turn on two-step verification (2FA) wherever you can.
  • Not being in a breach doesn't make a password strong; test its strength too.
Strong Password GeneratorCreate strong, unique, unpredictable passwords.Password Test: How Secure Is My Password?See how secure your password is and how long it would take to crack.2FA Code GeneratorGenerate two-factor (TOTP) codes from a secret key.

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