Convert an image to DXF
Trace a PNG or JPEG to a cuttable DXF outline in your browser, at a width you set in millimetres. Nothing is uploaded and there is no account to make.
Trace your image
Open the drawing workspace, choose your image, and set the threshold and the width. The file stays in your browser.
What this keeps and what it drops
Kept
- The boundary your brightness threshold draws, holes included
- The proportions of the image, scaled to the width you set
- A closed outline per shape, ready to cut
Dropped
- Colour, shading and anything between solid and empty
- Detail finer than the 256 pixel trace
- Smooth edges, because the outline follows pixel boundaries
You choose the threshold and the width, so there is no single result to measure. What is fixed is where the outline comes from and how coarse it can be.
What this is for
Someone sends you a logo as a picture and your cutter wants a path. That is the job here. The workspace decides which pixels belong to the shape using a brightness threshold you control, traces the boundary, and gives you a DXF in millimetres.
PNG and JPEG both work. A PNG with crisp edges traces most cleanly, because JPEG smooths hard edges when it compresses and the threshold then has to land somewhere inside that softened band.
What you set
The brightness threshold decides what counts as solid, and inverting it picks the light areas instead. The width in millimetres sets the physical size, and the height follows from the image's proportions.
After the trace you have an ordinary drawing rather than a picture, so the same workspace measures between two points, converts units, and resizes to a target dimension before you export.
What to expect from the outline
One closed outline per shape, on a single layer, holes preserved. Straight runs are merged, so a long edge is one line rather than one per pixel.
The trace runs at 256 pixels on the longest edge and follows the edges of those pixels, which makes the boundary stepped rather than smooth. On a 100 mm wide job each step is roughly 0.4 mm. Bold shapes cut cleanly. Fine lettering and thin detail do better from vector art.
The honest limits
This finds one boundary at one brightness. It does not separate a subject from a busy background, it does not sharpen a blurry photograph, and it does not invent detail that the pixels do not contain. If your artwork exists as an SVG, SVG to DXF will beat any trace.
Limits
PNG and JPEG are read. Images are limited to 25 MiB, 4 million pixels and 8,192 pixels on either side, and are traced at 256 pixels on the longest edge.