Image to CAD

Updated 4 August 2026 · by Ashesh · every accuracy claim on this page links to its measurement

Drop a picture of a part — a PNG drawing, a JPG photo, a screenshot, a clean sketch — and get back a CAD file with true circle and arc entities you can measure, edit and cut. Powered by AI recognition rather than pixel tracing, checked against your original automatically, and free with no signup.

No watermark · no credit card · nothing you upload is stored · works in a phone browser, no app install

Tracing translates pixels. Recognition understands parts.

Ask an engineering forum about converting an image to CAD and the standing answer is “you'll have to trace it by hand” — because every free converter that ranks for these searches is a tracer: it finds pixel boundaries and emits bezier curves. That is the right tool for turning a logo into vector art and the wrong one for a part, because a traced hole is not a hole. It is a closed curve blob that CAM software cannot drill, offset or count.

We measured the difference instead of asserting it. Parts with known geometry were rasterized and converted both ways; ground truth is the DXF each image was made from.

Run 4 August 2026, method and every number in the published benchmark. Counts were exact in all 18 cases across both PNG and JPG inputs; large-feature proportions held within a few percent; small hole diameters drifted more — which is why the output is measured on screen before you download, and auto-checked against your original.

PNG to CAD, and PNG to DXF

PNG is the strongest input. It is lossless, so an exported drawing view, a CAD screenshot or a cleaned scan keeps its edges exactly where the source put them — no compression halo around line work. In the measured runs, every PNG input came back with exact feature counts. Transparent backgrounds are flattened to white automatically, so alpha-channel exports convert without the black-background surprise; dark-mode screenshots usually read fine, but line-art convention is dark-on-light — invert first if a result looks wrong.

Best PNG candidates: exported drawing views, screenshots of drawings, cutting templates, laser-project outlines, scans cleaned to line art. A photograph saved as .png is still a photograph — the section below applies to it.

JPG to CAD, and JPG to DXF

JPG is the format of photographs and email attachments, and the standing fear is that compression artifacts destroy the geometry. We tested that: the same parts re-encoded at JPEG quality 70 — an aggressive setting — changed zero recognized feature counts. Artifact noise ruins pixel tracers, whose wobbling curves follow every speck; recognition reads “8 holes on a bolt circle” through the noise, the way you do.

How to photograph a drawing so it converts:

1. Directly above, lens parallel to the paper. Perspective skew is the one error that survives conversion.
2. One part filling the frame. Crop out the desk and the other details on the sheet.
3. Even, matte light — a shadow across line work reads as an edge. No flash on glossy paper.
4. Sharpness over megapixels. Anything above roughly 800 px on the long side is enough.
5. Know one true dimension for the scale question.

Picture, photo or sketch to CAD

Logos and artwork for CNC or laser cutting

The most common forum version of this task is a logo that needs to become cuttable linework. Honest guidance: if the logo is geometric — shapes, letters as outlines, a badge with holes — recognition returns clean entities you can cut. If it is detailed artwork with gradients and fine curves, a dedicated art vectorizer will follow those curves more faithfully than a parts-oriented recognizer, and you should use one, then expect polylines rather than circles. The dividing question is the same as everywhere on this page: do you need art reproduced, or geometry you can measure?

Want a CAD-style drawing image instead?

Several tools ranking for “image to CAD” are AI image generators: they output a JPG or PNG styled like a blueprint — often attractive, never openable in CAD. If that is what you want (an illustration, a poster, concept art), those tools serve it and this one does not. If you need a file AutoCAD can open and a laser can cut, a picture of a drawing is exactly what you already have — the thing you need is the DXF. The comparison page sorts the market by which side of that line each tool is on.

What comes out, precisely

• R12 ASCII DXF at 1:1 — the revision every laser cutter, CNC controller and CAM package imports without complaint. SVG alongside it.
• True entity types: holes as CIRCLE, curves as ARC, outlines as polylines/rects — the entity summary is printed under every result, and the measured panel lists size and every hole diameter.
• Units and scale: millimetres, calibrated by your one reference dimension (inches accepted and converted).
• Layers: profile and cuts separated, documented here.
• Opens in: AutoCAD, Fusion, SolidWorks, FreeCAD, LibreCAD, QCAD — no plugin. DWG is one SAVEAS away when a workflow demands it.
• Then it checks itself: the recognized geometry is rendered and compared against your original image, corrections are applied automatically, and the verdict is printed next to the download. You can stop it or download at any point.

Where it fails, stated plainly

• Perspective skews geometry. Shoot flat-on; the converter cannot un-skew what it cannot see.
• Small holes drift. Counts were exact in our runs; a 6 mm hole read from an 800-pixel image can still come back 20% off. The measured panel exists so you catch it before cutting — correct critical diameters in CAD, or state the part in text mode where dimensions are exact by construction.
• One part per image. Multi-view sheets confuse recognition; crop.
• Organic shapes are refused, not approximated — parametric CAD is the wrong tool for them and the tool says so.
• Drawing sheets in PDF have their own page: PDF to CAD, including the vector-versus-scan difference.