Password Strength Checker
Type a password to check its strength. Your password stays on your device.
Enter a password
✗ At least 8 characters
✗ Uppercase letter
✗ Lowercase letter
✗ Number
✗ Special character
✗ Not common/obvious
What is Password Strength?
Password strength measures how resistant a password is to guessing or brute-force attacks. Strong passwords use a mix of character types, sufficient length, and avoid common patterns or words.
Why Use This Tool?
Visual strength meter shows password security at a glance
Detailed checklist helps you improve weak passwords
All checks run locally in your browser — nothing is sent online
Learn what makes a password truly secure
Password Tips
Use at least 12–16 characters for strong security
Combine uppercase, lowercase, numbers, and symbols
Avoid common words, names, birthdays, and patterns like "1234"
Use a passphrase — a string of random words is hard to crack
Never reuse passwords across different sites
FAQs
Q: Is my password safe to type here?
A: Yes. All processing happens locally in your browser. Nothing is saved, stored, or sent over the internet.
Q: What makes a password strong?
A: Length is most important. A 12+ character password with mixed character types is significantly harder to crack than a short one.
Q: How does the strength scoring work?
A: Each security criterion adds points. A score of 0–1 is Weak, 2 is Fair, 3–4 is Good, and 5–6 is Strong.