Kept
- Triangle geometry
- Object groups as separate nodes
- A self-contained .glb
Runs locally · no upload
Convert OBJ to GLB
Pack an OBJ mesh into a single GLB for the web or AR. The triangles and object groups survive; MTL materials and external textures stay behind.
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- 5 credits per file
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Drop a 3D file hereSTL, OBJ, PLY, GLB, glTF, 3MF or STEP · up to 100 MB · processed locallyYour file never leaves this browser.
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What changes in the conversion
Dropped
- MTL materials and external textures
- OBJ comments and smoothing groups
- Any unit information
Common mistakes
- An OBJ that references an MTL file cannot load its materials here; the mesh is still converted.
- OBJ n-gons are triangulated on export.
- Files above 100 MB are refused.
For 3D printing
- GLB is for viewing, not printing; convert to STL or 3MF for the slicer.
- If you need colours, author PBR materials in a 3D tool before export.
Drop the file — it is read locally, never uploaded.
Choose the options, then convert or compress.
Download the result and open it in your slicer or 3D software.
Frequently asked questions
Does OBJ to GLB keep materials?+
No. The OBJ loader reads geometry only; MTL and textures are not loaded, so the GLB uses a default material.
Why is my model dark?+
Without materials the GLB gets a neutral PBR material; add one in Blender or start from a GLB that already has materials.
Is GLB smaller than OBJ?+
Usually yes: binary buffers replace text, even before Draco or Meshopt compression.
Need a model instead of a conversion?
Turn a photo, a drawing or a logo into a 3D model, then export it in the format you need.