About This Tool
Check how strong your password is with real-time analysis. The tool evaluates length, character variety (uppercase, lowercase, numbers, symbols), common patterns, dictionary words, and sequential characters. Get a strength score from Very Weak to Very Strong with specific suggestions to improve your password security.
Frequently Asked Questions
- Is it safe to type my actual password here?
- Yes. The analysis runs entirely in your browser using JavaScript. Your password is never transmitted over the internet, stored in cookies, or logged anywhere. Close the tab and it's gone.
- What makes a strong password?
- A strong password is at least 12 characters long, uses a mix of uppercase, lowercase, numbers, and symbols, avoids dictionary words, and doesn't use personal information or common patterns like '123456' or 'qwerty'.
- Does the tool check against leaked password databases?
- No. The check is entirely local — no network requests are made. For breach checking, you can use services like Have I Been Pwned separately.
- Why does my 8-character password show as weak?
- Modern computing can brute-force 8-character passwords in hours. NIST recommends a minimum of 12-14 characters. Length is the single most important factor in password strength.