String Art Portrait Generator

Upload a photo, tune nails & iterations, then press Run. This single-file generator uses a greedy algorithm to pick lines that reduce brightness error.

Image (PNG/JPG) Canvas size (px) Number of nails: 200 Iterations (string passes): 2000

Line width: 1.2

Line alpha: 0.08

Samples per line (quality)

Algorithm: Greedy selection — at each step choose the nail that most reduces the brightness error when drawing a line.

Tip: Higher iterations and more samples → better portrait, slower.