Convert OBJ to DWG (via DXF Projection)
Convert OBJ 3D models to a real, AutoCAD-ready DWG (2D projection) — one free conversion, or DXF instantly with no email needed.
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How OBJ → DWG conversion works
OBJ files store 3D geometry as vertices, edges, and faces. This tool loads the OBJ mesh and projects the geometry onto a 2D plane (XY top view by default), extracting visible edge lines and silhouettes as DXF line entities — free and available now, no email needed. All depth and 3D structure is permanently discarded in the projection. Real binary DWG output is also available: enter your email for one free DWG conversion (a one-time allowance shared across all four DWG tools on this site), or subscribe to Pro for 100 DWG conversions a month. If you need full 3D output, use OBJ → FBX instead.
Limitations
- Free DWG is limited to one conversion per email address, ever, shared across all four DWG-gated tools (JPG/PNG/OBJ/STL to DWG) — not per tool. Use OBJ to DXF for unlimited free DXF output instead.
- All 3D depth is permanently lost — output is 2D line geometry only.
- Textures, materials, and UV data from the OBJ are not present in DXF output.
- Dense polygon meshes may produce complex, hard-to-edit DXF line work.
When to use this conversion
- Extracting floor plan footprints from 3D models for architectural drawings.
- CNC cutting guide outlines from 3D product models.
- Architectural silhouettes for 2D drawing reference.
- Flat-pattern fabrication templates from 3D geometry.
Alternatives to consider
- OBJ → FBX on this site if a full 3D format is needed for game engines.
- FreeCAD's Drawing Workbench for engineering-accurate 2D drawings from 3D geometry.
- Blender (File → Export → DXF add-on) for more projection axis control.
Frequently asked questions
Why is this a 2D output from a 3D model?
DWG in 2D drafting is a flat format. Projecting 3D geometry to 2D is the standard workflow for extracting CAD reference from 3D models.
I need the full 3D model in a compatible format — what should I use?
Use OBJ → FBX on this site for game engines and 3D tools, or STL → OBJ for broader 3D format compatibility.
Why don't I get DWG directly?
DWG requires either one free conversion (enter your email — a one-time allowance shared across all four DWG tools on this site) or a Pro subscription (100/month). OBJ to DXF gives the same 2D projection free and instantly, no email needed.