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Local converter

GLB to OBJ Converter

Convert GLB files to OBJ locally in your browser for faster handoff across 3D tools.

Processed locally
No signup required
Files stay on your device
Browser-local GLB to OBJ conversion illustration

Private browser conversion

Files are converted locally in your browser.

1Upload2Convert3Download

Browser-local workflow

How this tool works

  1. Step 1

    GLB

    Choose a GLB file from this device.

  2. Step 2

    Browser-local conversion

    The supported geometry is converted in this browser.

  3. Step 3

    OBJ

    Download the OBJ result when conversion is complete.

Preserved

  • Geometry

Limited

  • Scene hierarchy

Lost

  • Materials
  • Textures
  • Vertex colors

Direct answer

What is preserved when converting GLB to OBJ?

This converter processes the GLB file locally in your browser and downloads the converted OBJ file. Geometry is retained by the current loader and writer. Scene hierarchy uses a supported subset. Materials, textures, vertex colors, animation, and units and scale are not included in the downloaded file.

Before you convert

GLB to OBJ compatibility

These results describe Modelfy's current browser loader and exporter, not every feature allowed by the file specifications.

Data preserved, limited, or lost when converting GLB to OBJ
DataResultWhat this implementation does
GeometryPreservedGeometry is retained by the current GLB loader and OBJ writer.
MaterialsNot exportedThe exporter downloads one .obj file and does not create a companion .mtl file.
TexturesNot exportedThe exporter does not package or reference texture images.
Vertex colorsNot exportedOBJ output from this tool does not store vertex colors.
AnimationNot exportedThe GLB format can contain this data, but the current single-file loader does not retain it for conversion.
Scene hierarchyLimitedMesh names are written, but parent-child transforms are baked into world-space vertices.
Units and scaleNot exportedOBJ output from this tool does not store units and scale.

Verify after export

  • Confirm scale and units when opening the OBJ file in the destination application.
  • Compare material colors and textures with the browser preview before using the result in production.
  • Confirm that a static model is acceptable; animation is not exported.

Why choose this GLB to OBJ converter

Local GLB decoding

The selected GLB model file is decoded and rewritten as OBJ on your device; the model file is not uploaded to Modelfy.

GLB to OBJ data report

The compatibility table identifies geometry as preserved by this loader and writer.

OBJ output checks

Scene hierarchy is limited; review the implementation detail and verify the downloaded file in your destination tool.

Preview before export

Inspect the browser preview before converting, then use the post-export checklist to confirm the OBJ result.

How to convert GLB to OBJ online

  1. 01

    Upload your GLB file

    Drag and drop the file into the converter, or click Upload. GLB inputs up to 25 MB are processed locally.

  2. 02

    Convert to OBJ

    Preview the model in 3D, then click Convert. The conversion runs locally in the browser; processing time depends on model complexity and device resources.

  3. 03

    Download the OBJ file

    Your OBJ file downloads straight to your device, ready for the next tool in your pipeline.

About the GLB file format

GL Transmission Format Binary

GLB is the binary container for glTF 2.0, the "JPEG of 3D" standard maintained by the Khronos Group. A single .glb file bundles meshes, PBR materials, textures, and animations, which makes it the easiest 3D format to move between tools and platforms.

Because GLB is optimized for fast loading on the web, it is the default output of most modern 3D pipelines, including AI 3D generators, web viewers, and game engines.

Format reference: Khronos glTF 2.0 specification

Strengths

  • Single self-contained file with textures included
  • Full PBR material and animation support
  • Loads fast in browsers and game engines

Commonly used for

  • Web and AR/VR experiences
  • Game engine asset delivery
  • AI-generated 3D model exchange

About the OBJ file format

Wavefront OBJ

The Wavefront OBJ format has been a de facto interchange standard since the 1990s. It stores vertex positions, normals, texture coordinates, and faces in plain text, with materials described in a companion .mtl file.

OBJ does not support animation or scene hierarchies, which keeps it simple and portable across many modeling, printing, and rendering tools.

Format reference: Library of Congress OBJ format description

Strengths

  • Broad support across established 3D tools
  • Simple structure that is easy to debug
  • Reliable geometry interchange

Commonly used for

  • Static model exchange between tools
  • 3D printing preparation
  • Photogrammetry and scan output

Frequently asked questions

Is my GLB model file uploaded to a server?

The selected GLB model file is processed by the browser and is not uploaded to Modelfy. Website code and static assets still load over the network like a normal web page.

Will I lose quality converting GLB to OBJ?

Mesh geometry is preserved as closely as the OBJ format allows. The target format may triangulate geometry or drop unsupported features such as animations, materials, textures, or scene hierarchy.

Is the GLB to OBJ converter free to use?

Yes. The browser viewer, converter, and local 3D text tool require no account and add no watermark. Input limits vary by format, up to 50 MB; AI model generation is a separate credit-based product.

What is the maximum file size?

GLB inputs up to 25 MB are accepted. The format-specific limit keeps browser-local parsing bounded; actual processing also depends on available memory, model complexity, and device performance.

What is the difference between GLB and glTF?

They share the same data model. A .gltf file is JSON that can reference external texture and buffer files, while a .glb packs everything into one binary file. GLB is easier to share; glTF is easier to inspect and edit by hand.

Where are the materials and textures of my OBJ file?

OBJ stores materials in a separate .mtl file with texture images alongside it. This single-file browser tool does not request those companions, so it displays supported OBJ geometry with a neutral material; review the compatibility table before conversion.

Related converters

Convert GLB to more formats

Convert other files to OBJ

AI 3D generation

From a single image to a production-ready 3D model

These browser tools stay free for viewing and converting files you already have. When the model does not exist yet, Modelfy generates a textured mesh from one reference image — the first one is free.

Try the AI 3D generator