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Is my DXF the right size?

Drop a DXF (or paste it) and find out its units and real-world size in a second, and whether it has the classic millimeter-versus-inch scale problem, before you waste a sheet of material on a laser or CNC. It runs entirely in your browser and nothing is uploaded.

Drop your DXF file here, or browse

Checked in your browser. Nothing is uploaded.

What it checks

Units (mm or inches)

A DXF that does not declare its units ($INSUNITS = 0) makes your laser or CAM software guess, which is the single most common reason a part comes out 25.4x too big or too small.

Real-world size

Reads the drawing extents so you can confirm the part is the size you expect before sending it to the machine.

The mm-vs-inch scale trap

Flags dimensions that look implausible for the declared units, the classic sign a millimeter file was imported as inches (or the reverse).

Splines and ellipses

Some laser and CNC controllers cannot read SPLINE or ELLIPSE entities. The checker warns you so you can convert them to arc-fit polylines first.

This reads ASCII DXF files (the default in most software). It is a quick static check, not a guarantee, and it cannot catch open contours or duplicate overlapping lines. For a full walkthrough, read how to prepare a DXF for laser cutting. For the format each machine actually needs, see the maker file-format reference, or check an SVG for cut-readiness.

Only have a PNG or JPG, not a DXF yet? Turn your image into a clean, cuttable DXF (and SVG) with VectoSolve.

Doing this for customers?

If DXF prep is your business, you are probably paying per file.

An outside art service charges 6 to 26 dollars a logo and comes back the next day. Redrawing it yourself costs half an hour you could bill. A year here is $49 for 25 conversions every month, every machine format included, which works out cheaper than two outsourced logos.

Everything on this page stays free. This is only worth it if you do volume.