Password Strength Checker
Estimate password entropy and crack time, and optionally check it against known data breaches privately.
Why use this tool?
See how strong a password is: estimated entropy, crack time and weak patterns - and optionally check whether it appears in known data breaches without revealing it.
How to use it
- Type a password.
- Review the rating and suggestions.
- Click 'Check known data breaches' for a private breach check.