How long would it take a hacker to crack your password? Our tool estimates crack time based on length, character types, and known patterns. Then generate a stronger replacement in one click — all analyzed locally, nothing sent to servers.
Users who want to audit their existing passwords before deciding whether to change them. Understanding password strength helps motivate better security habits.
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How to How Secure Is My Password? — Check Strength Instantly
- Open the Password Generator tool (it includes a strength meter)
- Type or paste your current password to check its strength
- View the estimated crack time and entropy score
- If weak: click Generate to create a stronger replacement
- Copy the new password and update your account
- Repeat for all important accounts
Pro Tips
- A password is only as strong as its weakest pattern — "P@ssw0rd123" is still weak
- Common substitutions (@ for a, 0 for o) are known to crackers and provide no benefit
- Length beats complexity: "correct-horse-battery-staple" > "P@ss1!" in security
- Your password was likely exposed in a breach — check haveibeenpwned.com
Frequently Asked Questions
What makes a password weak?
Dictionary words, names, dates, keyboard patterns (qwerty), common substitutions (@ for a), and passwords shorter than 12 characters. Attackers have databases of billions of leaked passwords.
How is crack time estimated?
Based on password entropy (randomness) and assumed attack speed of 1 trillion guesses/second (GPU cluster). Real attacks may be faster or slower depending on resources.
Is my password checked securely?
Yes, 100% locally in your browser. Nothing is sent to any server. The analysis uses pattern matching and entropy calculation in JavaScript.
My password is 20 characters — is it automatically strong?
Not if it is a sentence or uses repeating patterns. "aaaaaaaaaaaaaaaaaaaa" is 20 chars but cracks instantly. True randomness is what matters, not just length.
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