Generate a strong password and get an instant strength check. Our tool gives you a clear score, an estimated crack time, and practical tips to improve weak passwords — all running locally in your browser.
Tip: the strongest passwords are long and random. If symbols are annoying, keep symbols off and increase length.
What the strength check looks at
- Length and character variety
- Approximate entropy (“bits”)
- Common patterns (repeats, sequences)
- Basic common-password / weak-token hits
Fast “strong” settings
- Length: 18–24
- Require each type: on
- Exclude confusing: on (if typing manually)
- Unique per site: always
Checking an existing password?
Use the strength checker tab, paste your password, and the tool will show a score + tips. Nothing is uploaded.
Privacy
- Runs locally in your browser
- No password uploads
- Share links store settings only
Password Strength Check FAQ
Is the strength checker accurate?
It’s a helpful estimate. Real-world cracking depends on hashing algorithms, rate limits, and attacker resources.
What score should I aim for?
Aim for Strong or Very strong. If you’re getting “OK”, increase length first.
Does the checker send my password anywhere?
No. The checker runs locally in your browser.
Can I check passphrases too?
Yes. Passphrases often score well if they’re truly random words and long enough (4–6 words).