Password Strength Checker
Estimate your password strength instantly, without sending anything anywhere.
Password strength
Very Weak
This check runs locally in your browser. Your password is never uploaded, stored, or logged.
This is an estimate, not a security verdict. Long, unique passphrases are usually easier to remember and stronger than short repeating patterns.
Password checklist
- 12+ characters
- At least one uppercase letter
- At least one lowercase letter
- At least one number
- At least one symbol
Recommendations
- Start typing a password to see instant feedback.
Secure password generator
Generate a password to copy or use
Frequently asked questions
Does this tool tell me if my password was leaked in a breach?
No. This checker only estimates local password strength in your browser and does not check an external breach database.
What makes a password stronger?
Longer passwords with mixed character types and no obvious patterns are generally stronger. Variety matters more than guessing a single “perfect” format.
Should I use a password manager?
Yes, a password manager is one of the safest ways to create, store, and reuse strong unique passwords across accounts.
Is a passphrase better than a short complex password?
Usually yes. A long, unique passphrase with unrelated words is easier to remember and often more resistant to guessing than a short pattern-driven password.
Is my password stored anywhere?
No. The analysis and generator both run locally in your browser and never transmit or store your input.