Password Strength Checker
Check how strong your password is. Get a strength score, entropy in bits, crack time estimation, and suggestions to improve. All analysis runs in your browser.
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Frequently Asked Questions
- What does the password strength checker show?
- Strength score, entropy in bits, estimated crack time, and suggestions to improve. All analysis runs in your browser — your password is never sent or stored.
- Is my password sent to a server?
- No. The password strength checker runs entirely in your browser. Your password never leaves your device.
- What is password entropy and crack time?
- Entropy measures how unpredictable the password is (in bits). Crack time estimates how long it would take to guess by brute force. Higher entropy and longer crack time mean a stronger password.