MMegaConvert

Convert OBJ to GLB

Free online OBJ to GLB converter. No signup required.

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Max file size: 100 MB

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How to Convert OBJ to GLB

Follow these simple steps to convert your file in seconds.

  1. 1

    Upload your .obj file

    Drag and drop your .obj file into the upload area, or click "Browse" to select it from your device. Your file is uploaded securely and processed on our servers.

  2. 2

    Click "Convert to GLB"

    Once your file is uploaded, press the convert button to start the OBJ to GLB conversion process.

  3. 3

    Wait for the conversion to complete

    The conversion usually takes just a few seconds. You can see the progress in real time while your file is being processed.

  4. 4

    Download your converted .glb file

    When the conversion is finished, click the download button to save your new .glb file. The file is ready to use immediately.

Understanding OBJ and GLB Formats

Learn about the source and target file formats to understand what happens during conversion.

Source Format

Wavefront OBJ 3D Model

model/obj

OBJ (Wavefront Object) is a widely used plain-text 3D model format that stores geometry including vertices, texture coordinates, normals, and polygon faces. Developed by Wavefront Technologies, it supports polygonal meshes with optional material and texture references through companion .mtl (Material Template Library) files. OBJ is one of the most universally supported 3D interchange formats.

Advantages

  • Widely supported by virtually all 3D modeling, rendering, and game development tools
  • Plain-text format that is human-readable and easy to parse or generate
  • Supports texture coordinates, normals, and material references

Limitations

  • No support for animation, rigging, or scene hierarchy
  • Plain-text format results in large file sizes for complex models
  • Material and texture information requires separate .mtl and image files

Common Uses

  • 3D model interchange between different modeling and rendering software
  • 3D printing with texture and material information
  • Game development asset pipelines and 3D content creation

Target Format

GLB 3D Model

model/gltf-binary

GLB (GL Transmission Format Binary) is the binary container version of glTF 2.0, packaging the JSON scene description, binary geometry buffers, and texture images into a single self-contained file. Developed by the Khronos Group, it is designed as the "JPEG of 3D" for efficient transmission and loading of 3D content. GLB supports PBR (Physically Based Rendering) materials, skeletal animation, and morph targets.

Advantages

  • Single self-contained file with geometry, textures, and materials
  • Optimized for fast loading in web browsers and real-time 3D applications
  • Supports PBR materials, skeletal animation, morph targets, and scene hierarchy

Limitations

  • Relatively newer format with less support in legacy 3D software
  • Binary format that is not human-readable for debugging or manual editing
  • Texture compression within GLB varies across viewers and engines

Common Uses

  • Web-based 3D content delivery with Three.js, Babylon.js, and WebXR
  • AR and VR application 3D asset distribution
  • Real-time 3D visualization in e-commerce and product configurators

Frequently Asked Questions

Common questions about converting OBJ to GLB.

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