About

Every image here is a grid of black-and-white pixels of a specific width w and height h. Because there are only two colors, a w×h grid has exactly 2^w·h possible pictures.

We visit them in a fixed order that everyone shares, so every image has a stable address (w, h, k) — and a shareable URL like /img/2x2/9.

The order

1. First by pixel count n = w·h (ascending).
2. Within an n-bucket, by (w,h) pair: (1,n) first, then (n,1), then the remaining factor pairs grouped by ascending smaller side — wider-than-tall before its transpose.
3. Within a pair, by k from 0 to 2ⁿ−1. Read k as an n-bit binary number and paint the pixels left-to-right, top-to-bottom, most-significant bit at top-left. 0 is white, 1 is black.

Naming

Use email simple sign in to save settings and image names, then give any single image any name that occurs to you. Your names attach to that specific image forever. Anyone visiting that image sees every name it has ever been given — the names, not the people who submitted them. Your own history is visible only to you at /me.

Examples of the pair ordering

n=1  → (1,1)
n=4  → (1,4), (4,1), (2,2)
n=6  → (1,6), (6,1), (2,3), (3,2)
n=8  → (1,8), (8,1), (2,4), (4,2)
n=9  → (1,9), (9,1), (3,3)
n=12 → (1,12), (12,1), (2,6), (6,2), (3,4), (4,3)