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Password Entropy & Strength Estimator (Shannon Bits)

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100% In-Browser Privacy All computations and file processing run strictly in your browser. Zero server data uploads.

Evaluate cryptographic Shannon entropy bits, character pool size, and estimated brute-force crack time against GPU attacks.

NIST Shannon Entropy Cryptanalysis

Evaluate the true mathematical entropy in bits, charset pool size, and estimated brute-force crack time against modern GPU clusters.

Entropy (Bits) 78.5 Bits
Strength Level Very Strong
Charset Pool (R) 94 Chars
Est. Brute-Force Time 1,200 Years
معايير موثقة
نتائج دقيقة وحتمية تم اختباره وفقاً للمواصفات الرسمية لضمان نتائج حسابية موثوقة وقابلة للتكرار.

كيفية استخدام هذه الأداة

  1. Configure your utility settings, input parameters, or generator options above.
  2. Click Generate, Start, or toggle options to initiate the utility.
  3. Review generated results or timers, then click Copy or Download to export.

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