Password Strength Checker
Check password strength and get suggestions.
In-browser · Private · No uploads
Strength —
Length
0
Entropy (approx)
0 bits
Crack time (offline)
—
Basic hygiene
Suggestions
- Start typing to see advice…
Help & FAQ — Password Strength Checker
How to use
- Type or paste a password into the checker.
- Review strength feedback, entropy and estimated crack time.
- Adjust length and character mix until the score meets your requirement.
Use cases
- Check password strength before reuse.
- Spot weak patterns in existing passwords.
Tips & FAQs
- Is my password sent anywhere?
- The strength estimate runs in your browser using zxcvbn. The page does not send your password to a breach-checking service.
- Why does it flag common words?
- The entropy model penalizes dictionary words and known patterns to encourage stronger choices.
Formats & limits
- Estimates password strength; does not check breach databases
- Results are advisory—services may enforce different policies
- Input field clears when you navigate away
Privacy
Analysis stays in your browser; nothing is uploaded.
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Updated
15 October 2025