Password Strength Checker

1. Type or paste a password into the field.
2. Strength score, entropy (bits), and estimated crack time are shown instantly.
3. Follow the suggestions to improve weak passwords.

What makes a strong password?

• Length — 16+ characters is significantly stronger than 8
• Character variety — mix uppercase, lowercase, numbers, and symbols
• Unpredictability — avoid dictionary words, names, or keyboard patterns
• Uniqueness — never reuse passwords across sites

Privacy note: Your password never leaves your browser. All analysis is done client-side with zero network requests.