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Local converter

FBX to GLB Converter

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

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

Private browser conversion

Files are converted locally in your browser.

1Upload2Convert3Download

Browser-local workflow

How this tool works

  1. Step 1

    FBX

    Choose a FBX file from this device.

  2. Step 2

    Browser-local conversion

    The supported geometry is converted in this browser.

  3. Step 3

    GLB

    Download the GLB result when conversion is complete.

Preserved

  • Geometry
  • Scene hierarchy

Limited

  • Materials
  • Textures
  • Vertex colors

Lost

  • Animation
  • Units and scale

Direct answer

What is preserved when converting FBX to GLB?

This converter processes the FBX file locally in your browser and downloads the converted GLB file. Geometry and scene hierarchy are retained by the current loader and writer. Materials, textures, and vertex colors use a supported subset. Animation and units and scale are not included in the downloaded file.

Before you convert

FBX to GLB 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 FBX to GLB
DataResultWhat this implementation does
GeometryPreservedGeometry is retained by the current FBX loader and GLB writer.
MaterialsLimitedMaterials are normalized to Three.js standard materials; advanced shader properties can change.
TexturesLimitedLoaded image maps are embedded where the browser exporter supports them.
Vertex colorsLimitedVertex colors is carried through the supported subset of the FBX loader and GLB writer.
AnimationNot exportedThe current GLB exporter is not passed animation clips, so the downloaded model is static.
Scene hierarchyPreservedScene hierarchy is retained by the current FBX loader and GLB writer.
Units and scaleNot exportedThe FBX format can contain this data, but the current single-file loader does not retain it for conversion.

Verify after export

  • Confirm scale and units when opening the GLB 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 FBX to GLB converter

Local FBX decoding

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

FBX to GLB data report

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

GLB output checks

Materials 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 GLB result.

How to convert FBX to GLB online

  1. 01

    Upload your FBX file

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

  2. 02

    Convert to GLB

    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 GLB file

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

About the FBX file format

Autodesk Filmbox

FBX carries complete scenes: meshes, materials, embedded textures, skeletons, and keyframe animation. It is the lingua franca between DCC tools like Maya, 3ds Max, and Blender and game engines like Unity and Unreal.

FBX is a proprietary format with binary and ASCII variants. Modern binary FBX (version 7.x, 2011 and newer) is what browsers can parse.

Format reference: Autodesk FBX documentation

Strengths

  • Full scene, rig, and animation support
  • Standard in game development pipelines
  • Embedded textures and materials

Commonly used for

  • Game engine asset import
  • Character animation exchange
  • DCC tool interoperability

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

Frequently asked questions

Is my FBX model file uploaded to a server?

The selected FBX 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 FBX to GLB?

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

Is the FBX to GLB 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?

FBX 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.

Why does my FBX file fail to load?

Browser parsing supports binary FBX 7.0 and newer (roughly 2011+). Very old FBX 6.x files and some ASCII exports are not supported — re-export the model from your 3D tool with a current FBX version.

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.

Related converters

Convert FBX to more formats

Convert other files to GLB

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