Free online OBJ to DXF converter

Convert OBJ meshes to DXF and prepare verified 2D profiles, sections, or compatible 3D mesh data.

Convert OBJ to DXF online - free

.obj .dxf

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How to convert obj to dxf file

September 15, 2026
CAD formats
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A CAD, CAM, laser-cutting, or CNC workflow may require a DXF drawing when the available model is an OBJ mesh from Blender, a 3D scan, or a mesh library. The required result may be a 3D faceted DXF for viewing, but fabrication usually requires a selected 2D outline, projection, or cross-section.

What the OBJ format is

OBJ is a Wavefront text-based 3D geometry format. It stores vertex coordinates, polygon faces, vertex normals, texture coordinates, groups, and references to materials commonly held in a separate .mtl file.

Blender, Maya, 3ds Max, Rhino, MeshLab, photogrammetry software, and 3D scanners commonly import or export OBJ. It is primarily a polygon-mesh exchange format for rendering, visualization, scanned objects, and 3D-printing workflows.

OBJ generally describes faceted surfaces rather than CAD solids or drawing entities. It does not reliably define physical units, so coordinates exported as 100 units may be interpreted as 100 mm, 100 in, or unitless values by the receiving application.

What the DXF format is

DXF (Drawing Interchange Format) is an Autodesk CAD exchange format supported by AutoCAD and many CAD, CAM, CNC, laser-cutting, and drafting programs. A DXF can contain 2D lines, polylines, arcs, circles, splines, text, dimensions, and layers, plus 3D entities such as 3DFACE, polyface meshes, and mesh objects.

DXF is useful for editable CAD geometry and layer-based manufacturing workflows. ASCII DXF variants are text files, which can be inspected or processed by software, but DXF version and entity support vary significantly between applications.

For cutting, the target normally needs planar closed paths, usually polylines or curves on named layers. A raw OBJ mesh exported as DXF faces is not a cutting profile and may be rejected or misinterpreted by CAM software.

Convert the file

For straightforward format exchange, upload the .obj file to the OBJ-to-DXF converter on 101convert.com, choose DXF, convert it, and download the .dxf file. Open the result in the actual destination program and check its extents, entity types, scale, and layers before using it in production.

A direct conversion commonly creates faceted 3D geometry rather than arcs, circles, solids, or a 2D drawing. Use desktop CAD software when a specific section, projection, cleanup operation, or machine-ready profile is required.

Create a 2D DXF in Rhino

Import the mesh with File → Import.
Measure a known feature and scale the mesh to the required drawing units before extracting geometry.
For cross-sections, use Contour with the required cutting plane and spacing. For a projected drawing view, use Make2D after setting the intended view; inspect and remove hidden or unwanted edges.
Check the resulting curves for gaps, duplicate segments, self-intersections, and internal triangulation. Join only edges that form the intended boundary.
Select the finished curves and use File → Export Selected → AutoCAD DXF. Select a DXF version supported by the receiving software.

Rhino can also export the original mesh as 3D DXF geometry through File → Export Selected, but this preserves facets rather than creating a CAD solid or parametric feature history.

Create a 2D DXF in FreeCAD

FreeCAD can import an OBJ mesh and export suitable 2D geometry as DXF. Import the file with File → Import, verify its scale, then use the Draft workbench to create a projection or section as needed. Export the selected 2D Draft objects or edges through File → Export and choose DXF.

The Part workbench command Part → Create shape from mesh may help with surface or solid operations, but it can fail or create an unusable shape when the mesh is dense, open, self-intersecting, or non-manifold. A watertight mesh is required before a closed shell can be converted into a solid.

Quality and compatibility checks

OBJ materials, texture images, UV coordinates, lighting data, and most .mtl settings do not transfer into useful DXF drawing data. Object or group names may become layers in some converters, but this is not guaranteed.

Curved OBJ surfaces are approximated by mesh facets. Their sections and projections can contain many short line segments, producing large DXF files and rough machine motion. Simplify the mesh only within the required dimensional tolerance, or redraw critical geometry as arcs, circles, or splines where the target CAM system supports them.

Before fabrication, confirm the intended units, keep cut and engraving geometry on separate layers where required, remove zero-length and duplicate entities, and verify that each cut contour is planar and closed. Test the exported DXF in the exact CAD, CAM, or machine-control software that will consume it.

OBJ vs DXF: format comparison

How the OBJ and DXF formats compare on the properties that matter most for this conversion.

Comparison of the OBJ and DXF file formats
Property	.OBJ Wavefront OBJ	.DXF Drawing Exchange Format
Open standard	Yes	Partly open
Compression	Uncompressed	Uncompressed
Typical file size	Medium	Large
Opens in a web browser	No	No
Further editing	Easy	Limited
Metadata support	Basic	Basic
Plain-text readable	Yes	Yes
Best used for	Data exchange	Data exchange
Introduced	1990	1982
Developer	Wavefront Technologies	Autodesk
MIME type	model/obj	application/dxf

Open OBJ file Open DXF file

Frequently asked questions

Is the OBJ to DXF converter free?

Yes, converting OBJ to DXF on 101convert.com is completely free. No registration, email address or installation is required. If you need a higher file size limit or want to convert more files at once, see our plans.

How large can my OBJ file be?

You can upload OBJ files up to 500 MB and convert up to 5 files at once in a single batch.

What happens to my uploaded files?

Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.

Do I need to install any software to convert OBJ to DXF?

No. The OBJ to DXF conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.

Did the conversion fail?

In most cases, the cause is an incorrect file format. Please upload a valid OBJ file for this OBJ to DXF conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.

obj to dwg obj to dxobj

Additional formats for
obj file conversion

Reverse conversion

dxf to obj

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