GLTF to GLB — package your 3D model

When to choose this format

A .gltf file can reference separate .bin files and images. Sending only the JSON file can leave the model incomplete or unreadable. GLB can package supported model data and textures in a binary container.

How to convert

1. Install Fast Converter and Blender. Select the installed Blender folder in the Blender field.
2. Select GLTF input and add your files with their linked resources available.
3. Choose GLB output. Open export settings and enable the options you need.
4. Choose a separate output folder and click Convert. Open the result in the destination application after processing.

Export settings

Keep the .gltf, .bin and texture files in their original folder structure. Add the .gltf to the app, select GLB and enable Textures. For animated models, check the Animation and Skeleton options.

What to keep in mind

This workflow imports and re-exports through Blender; it is not a byte-for-byte repackaging operation. Unsupported extensions, extra metadata and settings may change or be lost. GLB does not automatically make a model smaller.

Check the result

Open the resulting GLB from a different folder in your viewer. Check geometry, textures and animation to help detect any remaining dependency on external resources.

Available in the free version

Process multiple models of one input format and choose one output format per run. Free input formats: GLB, GLTF, FBX, OBJ and BLEND. Free outputs: FBX, OBJ, DAE, GLB, GLTF and BLEND. Mixed inputs, multiple outputs, advanced formats, model preview, LOD removal and ungrouping require Premium.

A small verified example

We checked this workflow with a simple textured cube using the Fast Converter conversion script and Blender 4.0. This verifies a basic scenario; it does not guarantee compatibility with every model, material or rig.

Common questions

Do I upload my model to the website?

No. Install the Windows application: conversion runs on your computer using Blender. The website provides an interactive interface demonstration.

Can I convert multiple files for free?

Yes: add multiple models of one supported input format and choose one supported output format. Mixed input batches and multiple output formats require Premium.