DXFKit

Pre-flight check for laser & CNCDXF Viewer

Open a DXF file in your browser and see if it is ready for the laser: open contours, duplicate lines, text and the real size, checked the moment it opens.

FreeNo uploadNo sign-up
sample-bracket.dxfDEMO- DXFKit
runs in your browser
Nothing uploaded Cut 651.5 mm Units mm DXF R12 - 2018 X -   Y -
The check

What it finds before your laser does

Open contours

Shapes that do not close. Loose ends are marked red, because that part will not drop out.

Duplicate lines

The same line drawn twice is cut twice and burns the edge.

Text

Most laser programs skip text entities. Convert them to outlines first.

Real size

Width and height in millimetres and inches, so a part in inches is not cut 25 times too small.

Cut length

Total path length and the cutting time at the speed you set.

How it works

Three steps, no account

  1. Open a DXF

    Drop the file on the page or choose it. It opens right here, nothing is uploaded.

  2. Check it

    Pan and zoom the drawing. The check marks open contours in red and lists duplicate lines, text and the part's size.

  3. Save or cut

    Save the drawing as SVG, PDF or PNG, or send the DXF to your laser once the check says it is ready.

A DXF file viewer made for cutting

Most DXF viewers only draw the file. DXFKit also reads it the way a laser, CNC router or plasma table will: it joins the lines into shapes, finds the ones that do not close and marks their loose ends, counts lines drawn twice and warns about text the machine will not cut.

You also get the part's width and height in millimetres and inches and the total cut length, with an estimate of the cutting time at your speed.

SVGSVG to DXFexact curves and size PNGPNG to DXFtrace a logo or icon JPGJPG to DXFtrace a photo or scan →SVGDXF to SVGfor Cricut and Glowforge →PDFDXF to PDFprint at 1:1 →PNGDXF to PNGa sharp picture BOXBox generatorfinger-joint boxes GEARGear generatorspur gears to cut
FAQ

Questions

Is my DXF uploaded anywhere?

No. The viewer, the check and the SVG, PDF and PNG exports all run in your browser; the DXF file never leaves your computer.

Which DXF files open?

ASCII DXF from AutoCAD R12 to 2018 and from LibreCAD, QCAD, Fusion 360, SolidWorks, Inkscape, LightBurn and other programs: lines, arcs, circles, polylines, splines, ellipses, text, dimensions, hatches, blocks and layers. Binary DXF and DWG are not supported yet.

What does the ready-to-cut check look for?

Open contours (shapes whose ends do not meet, so the part never drops out), duplicate lines (cut twice, they burn the edge), text that laser software will not cut, splines and lines branching at one point. It also measures the part in millimetres and inches and adds up the cut length.

How do I open a DXF file without AutoCAD?

Drop it on this page. DXFKit draws it in the browser on Windows, Mac, Linux, iPhone or Android, with nothing to install.

Is it free?

Yes. Every converter, the viewer and the generators are free, with no sign-up and no watermark.