Convert OBJ 3D models to the GLB format (binary glTF) locally - the standard for web, AR and 3D viewers. No upload.
Running locally on your device ...
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Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
OBJ (Wavefront) is a common exchange format for 3D programs such as Blender, Cinema 4D or Maya. For the web, AR and modern viewers, though, glTF is the standard - with GLB as the compact single-file variant that bundles everything into one binary file. This tool reads the geometry of your OBJ and writes a valid GLB file from it, for instance for the model-viewer element, three.js or Babylon.js.
From the indexed OBJ mesh (a vertex pool with faces referencing it) a glTF 2.0 structure is produced: vertex and index buffers in the GLB binary part plus accessor and mesh entries. Polygons with more than three corners are split into triangles; the coordinates are carried over unchanged as 32-bit floating-point numbers.
Everything runs entirely locally in the browser - your model never leaves your device. Honestly framed: pure geometry is transferred. Materials from a companion MTL file as well as texture coordinates, normals and groups are not carried over. A broken or empty file is rejected with a clear message.
| Input formats | OBJ |
|---|---|
| Output format | GLB |
| Batch processing | No |
| Processing | Locally in your browser (JavaScript) |
| File upload | None |
Limitations: Converts OBJ to a GLB file (binary glTF 2.0): polygons are split into triangles and coordinates stay unchanged (32-bit float). Pure geometry is transferred - MTL materials, texture coordinates, normals and groups are not carried over. An invalid or empty file is rejected with a clear error.
No. Pure geometry is converted; a companion MTL file and textures are not carried into the GLB.
Faces with more than three corners are split into triangles (glTF stores triangles).
GLB is the binary single-file form of glTF: structure and binary buffer in one file.
No, the conversion happens entirely locally in the browser; your model never leaves your device.