Privacy-First: All calculations run locally in your browser.
Passphrase Vs Password Crack Time Estimator
Free passphrase vs password crack time estimator for US students and professionals. Inputs auto-save locally — no login required.
Password estimator
Estimate entropy and crack time, generate secure passwords, and validate complexity locally in your browser.
Result
Generated a 4-word passphrase
StrengthVery weak
- Entropy
- 22.58 bits
- Estimated crack time
- less than a second
frost-yield-yacht-frost
Ad slot (workplace-passphrase-vs-password-crack-time-estimator) — set NEXT_PUBLIC_ADSENSE_CLIENT
How we compare
Common gaps on competitor sites — and what ClientTools does differently.
- useapassphrase.com (Lacks copy-to-clipboard functionality)
- 2. diceware.dmuth.org (Confusing legacy text layout)
- 3. bitwarden.com (Promotes their paid cloud vault)
Recommended tools
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Frequently asked questions
Often yes — four random dictionary words can exceed 40+ bits of entropy and are easier to remember.