Password Strength Checker
Instantly check how strong your password is. Get entropy score, crack time estimate, and tips.
🔒 Your password is never sent to any server. Checking runs entirely in your browser.
Password Security Best Practices
- Use 16+ characters — length is the most important factor
- Mix uppercase, lowercase, numbers, and symbols
- Use a passphrase of 4+ random words (e.g., correct-horse-battery-staple)
- Use a password manager — it generates and stores unique passwords for every site
- Enable two-factor authentication (2FA) wherever possible
- Never reuse passwords across different accounts