How to convert FBX to OBJ
FBX is a closed Autodesk scene container — meshes plus cameras, lights, materials and animation. OBJ is a plain mesh list. The conversion is a deliberate simplification, and the free tools that do it run on your desktop.
Why there is no uploader on this page
FBX is a closed format that no browser can read, so an in-page converter would have to send your file to a server. The procedure below does the job properly in the application that owns the format — and where a browser-side route exists, it is linked underneath.
このファイルの修正や作図に、CAD/BIM技術者が必要ですか？
Stuck on CAD or 3D file cleanup? Post a drafting role specifying the source format, target format and checks you need. Agree the scope before work starts.
手順
- 1Blender (free): File → Import → FBX, check the scale, then File → Export → Wavefront (.obj) with "Selection Only" if you need one object.
- 2Autodesk FBX Converter (free, Windows) batch-converts FBX to OBJ, DAE and older FBX versions.
- 33ds Max or Maya: import the FBX, then export OBJ and keep the .mtl alongside it so materials can be relinked.
- 4Set the up axis and unit scale during import — FBX records both, OBJ records neither, so whatever you set becomes the file's implied scale.
- 5Once you have OBJ, our in-browser OBJ to DXF converter turns the mesh into CAD geometry with no upload.
注意点
- Animation, rigging, cameras and lights are discarded — OBJ stores only geometry and material references.
- Multi-material objects split into groups; keep the exported .mtl file or textures will not reconnect.
- Embedded FBX textures are extracted to a folder on import; OBJ references them as external files.
- Check for reversed normals after conversion — OBJ has no smoothing groups, only per-face normals.
Autodesk's scene format: meshes plus materials, cameras, lights and animation. The standard hand-off between 3ds Max, Maya, Revit and game engines.
A plain-text mesh format listing vertices and faces — openly documented, which is why it can be read and rewritten in the browser.
よくある質問
Can I convert FBX in the browser?
Not honestly. FBX is a closed binary container with no browser-safe reader, so this page gives the free desktop route instead of uploading your scene.
Will my textures survive?
Texture references do, via the .mtl file. The image files themselves must be shipped alongside the OBJ.
Why is my model enormous after conversion?
An FBX in centimetres exported as OBJ read as metres is 100 times too big. Set the unit scale at import and note the intended unit in the filename.
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