Random Seed Art Generator
Create reproducible generative art. Same seed always produces identical artwork.
Seed art uses a deterministic PRNG (pseudo-random number generator) seeded by a number you choose. This tool uses mulberry32, a small 32-bit generator. Same seed = identical output every time, making art reproducible and shareable. Change the seed and get a completely different pattern. Export the result as a PNG image.
Generator
Settings
Same seed = same art
How Seeded Randomness Works
| Concept | Definition |
|---|---|
| Seed | A number that initializes a PRNG, determining its entire sequence |
| Deterministic | No true randomness—sequences are fully predictable given the seed |
| Reproducible | Run with seed=12345 today or in 10 years, get identical output |
| Shareable | Tell someone "seed: 99999" and they see your exact artwork |
True randomness is unrepeatable. Seeded randomness lets artists explore a vast space of possibilities while keeping results shareable and reproducible—essential for generative art.
Examples
Organic Flow
Seed: 12345
Geometric Waves
Seed: 54321
Crystalline
Seed: 99999
FAQ
Is this really random?
Technically, no—it's pseudorandom. A seeded PRNG is deterministic: given the seed, all "random" numbers are predetermined. But the sequence appears random and has good statistical properties for art.
Can I share a seed to show someone my art?
Yes. Just tell them the seed number. They run it with the same seed and see identical art (assuming same complexity and browser capabilities). It's a compact way to share generative artworks.
Why does changing the seed change everything?
Tiny changes to the seed produce completely different random sequences (this is a desired property). Even seed 12345 vs 12346 yield unrelated artworks.
Can I use this commercially?
Yes. You own the output. Export the artwork as a PNG and use it freely in projects, products, or sales. No licensing restrictions.
Updated: September 2026 | PRNG: mulberry32 (32-bit, deterministic)