Line style
Contour line generator
Topographic iso-lines traced through the image.

From a photo

From a shader
How the Contour style works
Contour treats brightness as height and traces iso-lines through it with marching squares, like a topographic map. Coverage sets how many levels are traced, from 3 to 12.
Best for
Maps, data-art and minimal line graphics — especially with shaders.
Go deeper: Animated ASCII backgrounds →
Tips
- Try it with the Drift or Swell shader.
- More levels, more lines.
- Export SVG for plotters and laser cutters.
Export
PNG, JPEG, WebP and SVG. Animated looks export as GIF, MP4 or WebM.
More line styles
See all 25 styles →