Nouplo

Photo to line drawing

Flat areas go white and only the lines stay — as pencil or as clean ink.

Drop files here

or click to choose from your deviceAccepted: JPG, JPEG, PNG, WEBP, AVIF, GIF, BMP, HEIC, HEIF

Up to 3 files per runUp to 20 MB per file10 runs per dayRemove limits with Pro✓ Works offline

Your files stay on your device

This tool runs entirely in your browser. Nothing is uploaded, nothing is stored, and you can even turn off your internet connection before you start.

How it works

  1. Drop a picture onto the box: an illustration, a character sheet or a photo.
  2. Choose how fine the lines are, and pencil for a sketch or ink for clean black lines.
  3. Choose a transparent background to get lines only, ready to colour on a layer underneath.
  4. Select Extract lines and download the PNG.

Frequently asked questions

What kind of pictures work best?
Illustrations with clear outlines and flat colours: the fills disappear and the outlines stay, close to the original line art. Photos turn into a pencil-sketch look; busy backgrounds such as leaves or crowds become a lot of small marks, so a subject on a plain background works best.
How does it find the lines?
It divides the picture by a blurred copy of its own negative — the "colour dodge" method artists use in editing programs. Where the picture is flat the result is white; where brightness changes it stays dark. The Lines setting is the size of that blur.
Can I colour the result?
Yes. Choose the transparent background: you get black lines on a transparent PNG, to put on a layer above your colours in any painting program.
Is my picture uploaded, and what are the free limits?
It is not uploaded: the picture is changed in your browser. The free plan allows 3 pictures of up to 20 MB per run and 10 runs a day. Pro removes these limits.

Made for a specific use

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