Client-Side Engine Web Crypto · Zero Network

Cryptographic Token & Secret Entropy Profiler

Shannon entropy calculation, character frequency distribution, encoding identification, and secret leakage risk analysis.

Payload or Token Stream 0 characters

Sliding Window:

Cryptographic Digest & Encoding

Detected Encoding: -

Unique Character Count: -

Theoretical Max Entropy: -

SHA-256 Digest (Client-Side Web Crypto): -

Shannon Entropy Metric NO DATA

0.0000

bits per character (0 - 8.0)

0.0 (Predictable) 4.0 (Typical Text) 8.0 (Maximum True Random)

Enter a token or secret to measure thermodynamic information entropy. Shannon entropy measures unpredictability: values above 4.5 bits/char typically indicate high-entropy cryptographic material, API tokens, or encryption keys.

Character Frequency Histogram Top 12 Frequencies

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