THE RANDOMNESS WORKSPACE

Randomness tools.

Random data for statistics , Monte Carlo simulations and research experiments.

256 MBfree randomness generation

NUMBER GENERATOR

Sequences

FromTo

Number of terms Without replacementExport format

Integer bounds of any size. Large integers are exported as JSON strings to preserve precision.

Random byte file

Size in MB · 1 MB = 1,000,000 bytes

PREVIEWReady to generate

✳

Your next sequence
starts here.

Preview shows up to 100 terms. The file contains the full sequence.

PIXEL GENERATOR

Bitmap

WidthHeight

Color

Up to 16,000 × 16,000.

Your image will appear here.

COIN FLIP

Coin flip

Heads or tails · 50 / 50

0 flips

Ready?

Flip history

GIVEAWAY PICKER

Unique winners.

Post URL

Platform connection required.

Number of winners

WINNERS

No comments imported.

Random Noise

Duration (minutes)SoundPlayback volume

Up to 10 hours · WAV · mono · 22.05 kHz / 16-bit. Generated with KE32-R2-C64.

AUDIO PREVIEW

Generate a file to listen or download.

KEY EXPANSION

KE32-R2-C64

A pseudorandom generator with ten 32-bit words · 320-bit state · two rounds per update and a 64-bit counter. Randux seeds the state from the operating system and runs 20 warm-up updates.

Each step updates one cell in sequence using its neighbors. The output is the 32-bit word X₂.

For non-cryptographic applications. Cryptographic key and secure seed generation is not enabled.

C_{j} = (BASE + j \cdot INC) mod 2^{64}

T_{1} = high32 (C_{j}) T_{2} = low32 (C_{j})

L = W_{(i + 9) mod 10} R = W_{(i + 1) mod 10}

X_{1} = {ROTL}_{7} (((W_{i} + T_{1}) \oplus {ROTL}_{17} (R)) - {ROTL}_{17} (L))

X_{2} = {ROTL}_{7} (((X_{1} + T_{2}) \oplus {ROTL}_{17} (R)) - {ROTL}_{17} (L))

W_{i} \leftarrow X_{2} i \leftarrow (i + 1) mod 10

BASE = 0x2107D71C673A0DB8

INC = 0xE9A3BB516B48361D

Round additions and subtractions are modulo 2³². The odd INC gives the counter a 2⁶⁴ cycle · this does not prove the output period.

Panagiotis AndreadakisInventor · Creator of KE32-R2-C64 and RPC / Random Position Cipher

18 patents and applications , according to the creator.

Statistical evaluation

The creator reports successful PractRand · TestU01 / BigCrush · NIST SP 800-22 tests. Tests apply to specific versions and output streams and do not certify cryptographic security.

PractRand: 64 TB of randomness with zero anomalies , according to the creator.

Reference test…