Free forever · No sign-up · No watermark

PNG to DWG Converter

Drop a .png floor plan, schematic or logo below and download a native DWG of editable polylines. Free, no account, nothing to install.

output

Drop images here, or click to choose

Conversion starts immediately. Up to 100 MB per file. You can also paste a screenshot

pngjpgjpegwebpgifbmptifftifavifsvgico

How to convert PNG to DWG

Upload your PNG file

Drop your .png on the converter, click to browse, or paste a screenshot with Ctrl+V.

We trace the lines

Transparent pixels are flattened onto white paper, then the remaining ink is thinned to a one-pixel skeleton and walked into single centerline polylines.

Download a real DWG

You get a native 2018-format DWG with editable LWPOLYLINE geometry on its own A-SKETCH layer — editable geometry, ready to draft on, not a picture to trace again.

What you get: lines, not pictures

A floor plan with solid walls, furniture and text — and the CAD geometry this converter produces from it. Walls keep both faces, every thin line is a single editable polyline, and labels become real editable text.

Example PNG floor plan before conversion — Input: raster image (solid walls, thin furniture lines, text)

Editable DWG vector drawing produced by the converter — Output: editable DWG polylines (walls outlined, lines centerlined)

About PNG to DWG conversion

PNG is the format drawings usually end up in once they leave a CAD seat: lossless compression means a screenshot of a plan, an exported schematic or a logo keeps pin-sharp edges, and sharp edges are exactly what a tracer wants. There is no blocking, no ringing and no colour bleed to undo first, so PNG is the highest-fidelity raster input this converter accepts.

The one PNG-specific thing worth knowing is the alpha channel. DWG has no notion of transparency, so transparent regions are composited onto white before anything is measured — a logo exported with a transparent background converts identically to one on a white card. Everything that survives thresholding lands as LWPOLYLINE geometry on an A-SKETCH layer, so you can freeze it, recolour it or draft straight on top of it in your CAD.

Frequently asked questions

Does PNG transparency break the conversion?

No. Transparent pixels are composited onto white paper before the image is thresholded, so a logo with a transparent background gives the same DWG as one saved on a white card. Semi-transparent pixels resolve to their blended grey and are then kept or dropped by the threshold like any other tone.

Is a PNG screenshot of a drawing good enough?

Usually yes — screenshots are lossless, which is the main thing. Resolution is the limiting factor: the image is normalized to a 2048-pixel working frame, so a 600 px wide screenshot has little detail to give. Zoom in and capture the sheet in two halves if lines are dropping out.

Do I get real CAD geometry or a picture inside a DWG?

Real geometry. Output is a 2018-format DWG of LWPOLYLINE entities you can trim, extend, offset, snap to and dimension. Nothing about the original PNG survives into the file — no OLE object, no image reference, no external dependency.

What happens to the text on my PNG?

Labels are read with OCR before tracing and re-emitted as editable CAD TEXT entities on an A-TEXT layer, at the measured position and cap height. Room names and dimension callouts stay text you can retype, rather than a knot of traced outlines.

Is there a size or file-count limit?

Uploads are capped at 100 MB each, which no realistic PNG reaches. There is no daily quota, no queue and no account — convert one file or two hundred. Uploads and results are retained so failed conversions can be debugged and re-downloaded; they are never sold or shared.

Convert from a script or an AI agent

The same conversion is one HTTP call — no key, no account, no rate limit. The full machine-readable spec lives at /llms.txt.

curl -X POST https://nasji.com/api/convert \
  -F "[email protected]" \
  -F "target=dwg" \
  -o drawing.dwg