Estimate password strength from length and character variety using a simple heuristic. It is a guide only—not a substitute for a unique password and a manager.
Password strength
Heuristic score from length and character mix. Not a substitute for a unique, random password.
Score25
RatingWeak
- Use at least 12 characters for a stronger password.
- Add uppercase letters.
- Add symbols.
How to use Password strength
- Type a password you are considering (it stays local).
- Read the strength label and hints.
- Prefer longer passwords with mixed character types.
Example: Short dictionary words score weak; long random strings score stronger.
Frequently asked questions
- Is the score accurate?
- It is a heuristic based on length and character variety, so treat it as guidance rather than a guarantee against real attacks.
- What makes a password strong?
- Length matters most, followed by unpredictability. A long unique passphrase stored in a manager beats a short complex one you reuse.