Password Strength Prüfer

Entropy, crack-time estimate and plain-English advice.

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Entropy (bits)
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Character classes
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Offline crack estimate
Suggestions

    Everything is computed in your browser — the password never leaves this page. Estimates assume an attacker at 1011 guesses/second (modern hardware), which is why a long passphrase often beats a short “complex” password.

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    Über

    Estimates entropy in bits from character classes and uniqueness, flags common dictionary patterns, and translates the result into an offline crack-time estimate at roughly a hundred billion guesses per second.

    The headline finding matches most security guidance: length beats symbol-spice. A 16-character passphrase usually beats an 8-character password with everything in it.

    Alles läuft lokal in Ihrem Browser: keine Daten werden hochgeladen, kein Konto nötig.

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