GLTF → OBJ · local conversion
Choose a .gltf file and download the .obj result without sending your design to a conversion server.
GLTF → OBJ
glTF colors, materials and metadata are not part of the OBJ format and are dropped. Multiple bodies are combined into a single mesh; verify orientation after import.
glTF stores a node hierarchy of meshes with PBR materials. OBJ stores grouped meshes with optional vertex normals and UVs. This converter keeps the usable geometry and writes it as a standard OBJ file.
Drop a .gltf file into the converter and wait for the local download. Open the result in Blender, MeshLab, ZBrush, Cinema 4D and most CAD viewers, then confirm its dimensions and orientation before going further.
Drag a .gltf file into the converter above, or click to browse. The file stays on your machine — the browser reads it directly and nothing is uploaded to a server. Files up to 50 MB are supported.
Conversion runs inside a Web Worker so the page stays responsive. The converter reads a node hierarchy of meshes with PBR materials, then flattens every visible mesh into OBJ output. Larger models take longer to parse; meshes with several hundred thousand triangles usually finish in a few seconds.
When conversion finishes, the download starts locally. The output keeps the original filename with a .obj extension. There is no account step, no queue and no watermark.
Open the result in Blender, MeshLab, ZBrush, Cinema 4D and most CAD viewers. Confirm dimensions and orientation before applying print or render settings.
| GLTF | OBJ | |
|---|---|---|
| Full name | GL Transmission Format (JSON) | Wavefront OBJ |
| File structure | JSON document, often beside .bin and texture files | plain-text file listing vertices and faces |
| Geometry model | a node hierarchy of meshes with PBR materials | grouped meshes with optional vertex normals and UVs |
| Stores color & materials | Yes | No |
| Carries unit metadata | No | No |
| Typically comes from | Blender, Khronos sample assets, Maya, Cesium and Babylon.js exporters | a widely readable text interchange format |
The usual situation: you have a .gltf file from a real-time or web-3D pipeline, but the tool you need to use next only reads OBJ. Blender, Khronos sample assets, Maya, Cesium and Babylon.js exporters all export glTF, while Blender, MeshLab, ZBrush, Cinema 4D and most CAD viewers typically expect .obj. OBJ is plain text and readable by almost any 3D application, which makes it a dependable interchange and archival format.
glTF stores a node hierarchy of meshes with PBR materials; OBJ stores grouped meshes with optional vertex normals and UVs. Color, materials and textures do not survive the conversion — that is a property of the OBJ format itself, not a limitation of this converter. The geometry itself — triangle faces and vertex positions — is preserved in full, and that is what printing and downstream modeling actually depend on.
The model is tens or hundreds of times too large or small. Units did not line up; rescale in millimeters inside your target application. The output is empty or partial. The source may keep geometry on hidden nodes — unhide them and re-export from the original tool. Surfaces render black or inside-out. The converter recomputes normals for meshes that lack them, but faces that were already inverted in the source need fixing in Blender, MeshLab, ZBrush, Cinema 4D and most CAD viewers. The file will not open. Check that the extension matches the real format; and if your .gltf references external .bin or texture files, use the self-contained .glb form instead.
Most online converters upload your file to a server, convert it there and send the result back. For unreleased product designs, client models or anything under NDA, that upload is the moment the file leaves your control. This converter runs three.js loaders and exporters locally in your browser, so the file never crosses the network — the page will even convert with your connection turned off.
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