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Local converter

FBX to GLTF Converter

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

Processed locally
No signup required
Files stay on your device
Browser-local FBX to GLTF 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

    GLTF

    Download the GLTF 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 GLTF?

This converter processes the FBX file locally in your browser and downloads the converted GLTF 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 GLTF 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 GLTF
DataResultWhat this implementation does
GeometryPreservedGeometry is retained by the current FBX loader and glTF writer.
MaterialsLimitedMaterials are normalized to Three.js standard materials; advanced shader properties can change.
TexturesLimitedImages are embedded in the downloaded JSON glTF rather than emitted as companion files.
Vertex colorsLimitedVertex colors is carried through the supported subset of the FBX loader and glTF writer.
AnimationNot exportedThe current glTF exporter is not passed animation clips, so the downloaded model is static.
Scene hierarchyPreservedScene hierarchy is retained by the current FBX loader and glTF 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 glTF 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 GLTF converter

Local FBX decoding

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

FBX to GLTF data report

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

GLTF 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 GLTF result.

How to convert FBX to GLTF 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 GLTF

    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 GLTF file

    Your GLTF 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 GLTF file format

GL Transmission Format

glTF 2.0 is a royalty-free specification from the Khronos Group for efficient transmission of 3D scenes. The .gltf variant stores the scene description as readable JSON, optionally referencing external binary buffers and textures.

It is the most widely supported runtime format on the web: three.js, Babylon.js, Unity, Unreal, and most DCC tools read and write glTF directly.

Format reference: Khronos glTF 2.0 specification

Strengths

  • Open standard with wide industry support
  • Human-readable JSON scene description
  • PBR materials, skins, and animations

Commonly used for

  • Web 3D and e-commerce viewers
  • Cross-tool scene exchange
  • Runtime asset delivery

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 GLTF?

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

Is the FBX to GLTF 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.

Does the browser tool support .gltf files with external buffers?

Self-contained .gltf files (embedded buffers and textures) work best, because the browser only receives the single file you upload. If your .gltf references external .bin or texture files, export it as .glb first.

Related converters

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Convert other files to GLTF

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