One seed, one picture.

Every drawing here is computed, not stored. The seed you type is hashed into a stream of random numbers, and the style's algorithm spends that stream on every decision it makes: where to split, which colour, how far a line bends. Feed it the same seed and it makes the same decisions in the same order, so it draws the same picture on any computer, at any size.

Options sit on top of the seed. Leave one on Auto and the seed chooses; set it and you choose, while the seed still decides everything else. A link carries the style, the seed and any options you set, so a shared link redraws your picture exactly.

Nothing is uploaded and there are no image files: the page is plain JavaScript drawing onto a canvas. Saved PNGs are rendered again at the size you pick, up to 4000 px for print.