Entropy calculator
Calculate entropy of a given string.
This tool processes all data locally on your device.
Input
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Output
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Tool description
A Shannon entropy calculator that measures the information content and randomness of any text string. Calculate the entropy of a string to determine how much unpredictability it contains-essential for testing password entropy, analyzing data randomness, and evaluating cryptographic strength. This tool applies Shannon's information theory formula to provide precise entropy measurements for security analysis, data compression, and information theory applications.
Features
- Shannon Entropy Calculator: Uses the standard Shannon entropy formula for accurate information content measurement
- Real-time String Entropy Analysis: Calculate the entropy of a string instantly as you type or modify text
- Character Frequency Analysis: Analyzes the frequency distribution of characters in the input
Tool info
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Tags
entropycalculatorrandomnessstring
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