Random Number Generator

Advanced Random Number Generator & Entropy Calculator

Generate cryptographically secure tokens, calculate Shannon entropy bits, run uniformity tests, and compute lottery odds

Number of characters
Generated Cryptographic Token
K9#mP2$vL8!qR4*wX7&yZ3%hF6@bN5#jD1
Cryptographically Secure (Web Crypto API)
Shannon Entropy: 194.2 Bits • Brute-Force Space: 2¹⁹⁴
Character Pool Size (N) 74 chars Available unique symbols
Entropy per Character 6.21 Bits log₂(N) randomness density
Total Information Entropy 194.2 Bits Length × Bits-per-char
Estimated Crack Time (10¹² guesses/sec) 7.4 × 10³⁷ Years Computationally immutable
Number of integers drawn
Number of discrete integer bins
Chi-Square Test for Randomness (χ²)
χ² = 3.420 (p = 0.490)
Uniform Distribution Confirmed (Pass)
Degrees of Freedom: 4 • No significant bias detected
Bucket (Value) Observed Count (O) Expected Count (E) Deviation (O – E)² / E
e.g., 69 white balls (Powerball)
e.g., 5 numbers drawn
Drawn Quick-Pick Combination
[12, 28, 41, 55, 63]
Exact Combinatorial Odds
Total Combination Combinations C(n, k): 11,238,513
Winning Probability P(E) 1 in 11,238,513 8.899 × 10⁻⁸ probability
Total Combinations C(n, k) 11,238,513 Unordered subset space
Permutations P(n, k) 1,348,621,560 Ordered sequence space
Expected Value Metric Fair Game Analysis Evaluates combinatorial odds