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How to convert OBJ to GLB

Need to convert OBJ to GLB? OBJ is a simple, universal static mesh format with basic material references; GLB is best for web, real-time and AR delivery. This guide covers exactly what survives the conversion, what you can lose, and the quickest reliable workflow.

What transfers and what you lose

  • OBJ materials are basic, so plan to rebuild them as PBR (base colour, roughness, metallic, normal) for GLB.
  • Check units and scale after importing. OBJ and GLB workflows often assume different default units, which is the most common cause of a model arriving far too large or too small.

Convert OBJ to GLB in your browser

This local converter supports standalone OBJ files for this safe mesh route. Nothing is uploaded. Materials, animation and external texture sidecars may be lost depending on the formats.

Local mesh converter

Choose a file to convert.

Recommended workflow

  1. Open your OBJ file. Import the OBJ file into a tool that reads both formats, such as Blender (free), Cinema 4D, 3ds Max or MeshLab.
  2. Check scale, units and orientation. Confirm the model is the right size and facing the right way before exporting. Fix the units now rather than in the target application.
  3. Set up materials for the target. Assign or rebuild PBR materials (base colour, roughness, metallic, normal) so they survive as GLB.
  4. Export as GLB. Export to GLB using the correct options for web, real-time and AR delivery, then re-open the result to confirm geometry, scale and materials are intact.

Frequently asked questions

What is the easiest way to convert OBJ to GLB?

Open the OBJ file in Blender (free), Cinema 4D, 3ds Max or MeshLab, check the scale and materials, then export as GLB. It is free and avoids the quality loss of one-click online converters.

Will I lose anything converting OBJ to GLB?

OBJ materials are basic, so plan to rebuild them as PBR (base colour, roughness, metallic, normal) for GLB.

Why does my model come in the wrong size?

OBJ and GLB often assume different default units. Set the units explicitly on import and export, then verify the dimensions against a known measurement.

Related conversions

This is a free guide. Use the interactive 3D File Format Converter Guide for a tailored workflow, or let XO3D handle the production for you. XO3D is a UK-based CGI studio.