LINE ART
☞ runs entirely in your browser — nothing is uploadedDrop your image here
or click to browse — JPG, PNG, WebP
Line art preview
OneImageTool
Free Image Tools
LINE ART
Turn a photograph into pure black outlines on white — the kind of drawing you can print and colour in.
or click to browse — JPG, PNG, WebP
Line art preview
edges, then a hard yes or no
The picture is reduced to grey, then each pixel is compared with its neighbours a short distance away. Where brightness changes fast there is an edge; where it barely changes there is none. That gradient is then forced into a decision — black line or white paper, nothing in between. The result is a drawing rather than a shaded picture: no grey, no texture, just the outlines that survived the threshold.
The distance between the compared pixels is not fixed at one pixel; it grows with the size of the image. A one-pixel comparison on a four-thousand-pixel photo finds an edge almost everywhere, and the page turns into a grey cobweb the moment you look at it scaled down. Scaling the sampling distance keeps the lines readable at the size you will actually view them, whether the source is a phone screenshot or a full-frame photograph.
three steps
A JPG, PNG or WebP. Pictures with clear outlines and even lighting give the cleanest drawing; a busy, low-contrast photo produces a lot of speckle.
The filter runs in one pass and has nothing to tune, so what you see is the finished drawing.
Save as PNG. The output is pure black on pure white, which PNG stores exactly and JPG would smear into grey halos.
quick answers
Both start from the same edge detection. Ink painting keeps the gradient as a soft grey wash on cream paper; this one throws the gradient away and keeps only a yes-or-no line on white. One is a picture, the other is a drawing you could colour in.
Noise and texture look like edges to the detector — grass, fabric weave, JPEG artefacts. A picture with clean outlines and flat areas converts better, and raising the source image’s contrast first also helps.
That is what it is for. The output is pure black lines on pure white, so it prints as a line drawing and fills in cleanly with any paint bucket.
Below a certain size the sampling distance is one pixel and almost everything counts as an edge. Line art is built for photographs; a small graphic is usually better traced properly, which is what the PNG to SVG tracer is for.
No. The result is opaque black on white, because a line drawing needs paper to be a drawing. If you need transparent lines, take the white out afterwards with the magic wand.
JPG, PNG and WebP go in. PNG, JPG or WebP come out — PNG is the right pick for a two-colour image.
No. The picture is decoded and converted inside your browser, and the download is built on this device. There is no server in this tool to receive an image.
Yes — free, with no watermark and no sign-up.