Password Check

Analyze password strength: length, character types, entropy, estimated crack time. Never stores or transmits passwords.

Entropy AnalysisCrack Time100% Client-SideFree

Enter Password

Your password is never stored or transmitted. Analysis happens locally in your browser.

Frequently Asked Questions

Is my password safe to enter here?

Yes. Your password is analyzed entirely in your browser using JavaScript. It is never sent to any server, stored, or transmitted anywhere.

How is crack time estimated?

We calculate based on the password entropy and assume an attacker can try 10 billion guesses per second (GPU-based cracking).

What makes a strong password?

A strong password is 12+ characters long and uses a mix of uppercase, lowercase, digits, and symbols. Avoid common patterns and dictionary words.

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