Calculate Shannon entropy bits and GPU crack time estimations.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Paste the string, token, or password you want to evaluate.
Analyze Shannon entropy (bits per character), total entropy bits, and character pool distribution.
Check brute-force crack time estimates across modern GPU and cloud cracking clusters.
Shannon entropy measures information density and unpredictability in bits, indicating resistance to dictionary and brute-force attacks.
Yes, calculation is strictly client-side with zero network egress or telemetry.
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