Password Intelligence

Know how strong
your password really is.

Analyze password strength using entropy, common-password detection, pattern analysis, and estimated guessing resistance - entirely and only inside your browser.

0%
strength

Waiting for a password

Enter a password above and the analysis will happen locally.

Entropy
—
Guesses
—
Crack time
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Length
0 chars
Pattern analysis
Enter a password to see detected patterns.
What makes it stronger?
Use a longer password or passphrase, avoid common words, repeated characters, predictable sequences, keyboard patterns, and personally predictable information such as years.
✓
Your password stays in this browser. This page does not upload your password to a server, API, database, analytics service, or third-party website. The analysis is performed locally with JavaScript.