THE RANDOMNESS WORKSPACE

Randomness tools.

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

No quotafree randomness generation

NUMBER GENERATOR

Sequences

FromTo

Number of terms Without replacementExport format

Binary preserves your sequence values. For randomness batteries , use Random byte file below or the full unsigned 32-bit range (0–4294967295) with replacement.

Random byte file

Size in MB · 1 MB = 1,000,000 bytes

PREVIEWReady to generate

✳

Your next sequence
starts here.

Estimated time: —

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

PIXEL GENERATOR

Bitmap

WidthHeight

Color

No dimension quota. Available device storage and the BMP file format set the practical limits.

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

YouTube video URLs · no sign-in required.

Number of winners

WINNERS

No comments imported.

Random Noise

Duration (minutes)SoundPlayback volume

No duration quota · WAV / RF64 · mono · 22.05 kHz / 16-bit. Limited by available device storage.

AUDIO PREVIEW

Generate a file to listen or download.

Randomness Lab

Choose file

TXT / JSON numbers , BMP pixels and WAV samples are prepared automatically. Compressed audio is decoded when your browser supports it.

Test suite

Runs on your device. Keep this page open while testing. Raw uniform bits only; population measurements need different statistical tests.

LIVE RESULTS 0 bytes

Choose a binary file.Estimated time: —

Checkpoints and anomalies appear here.

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}

P = R ⋘ 17

Q = L ⋘ 17

X_{1} = (((W_{i} + T_{1}) \oplus P) - Q) ⋘ 7

X_{2} = (((X_{1} + T_{2}) \oplus P) - Q) ⋘ 7

W_{i} \leftarrow X_{2}

i \leftarrow (i + 1) mod 10

BASE = 0x2107D71C673A0DB8

INC = 0xE9A3BB516B48361D

⋘ denotes cyclic left rotation of a 32-bit word. P and Q abbreviate the rotated neighboring words.

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.

Contactpanosanedu@gmail.com

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…