๐ฒ Entropy Analyzer
Measure randomness and unpredictability of CAPTCHA generation
Study
Demo
Generator
Analysis
Dashboard
Sample Size
100
500
1,000
5,000
Challenge Type
All Types
Text Recognition
Object Identification
Sequence Ordering
Spatial Reasoning
Seed (optional)
Analyze
Export CSV
Shannon Entropy
โ
bits per symbol
Min-Entropy
โ
worst-case bits
Chi-Squared (ฯยฒ)
โ
p-value
Serial Correlation
โ
coefficient
Collision Rate
โ
duplicates
Overall Score
โ
out of 100
Frequency Distribution
Sequential Correlation Heatmap
Bit Pattern Distribution
Findings