GLTF (GL Transmission Format) is an open standard 3D file format for web delivery. The JSON-based format allows external texture files, making it flexible for web-based 3D applications.

What is the difference between GLTF and GLB?

GLTF is JSON-based and can reference external textures, while GLB is the binary version with everything in one file. GLB is more compact, GLTF is more human-readable and easier to debug.

Can I use GLTF for web applications?

Yes. GLTF is designed specifically for web 3D. It works with Three.js, Babylon.js, and other WebGL libraries. For production, GLB (binary version) is often preferred for efficiency.

Can I convert GLTF to other formats?

Yes. Upload your GLTF file and export it to GLB, OBJ, or STL using the viewer.

Is this GLTF viewer free?

Yes. This online GLTF viewer is completely free with no registration required.

GLTF File Viewer

GLTF Viewer - View GLTF Files Online Free

Upload and preview your GLTF files instantly. Perfect for web developers working with Three.js, Babylon.js, or WebGL. View JSON-based 3D models with external textures.

Drop your 3D file here

or click to browse

Supported formats: .GLB, .GLTF, .OBJ, .STL, .FBX

Maximum file size: 50MB

What is a GLTF File?

GLTF (GL Transmission Format) is an open standard 3D file format created by the Khronos Group for efficient 3D model delivery on the web. Unlike its binary counterpart GLB, GLTF uses JSON format with external texture references, making it human-readable and easier to debug during development.

Web 3D Standard

The official standard format for web-based 3D content, designed for WebGL.

JSON-Based Format

Human-readable JSON structure with external texture files for easier debugging.

Developer-Friendly

Easy to inspect, edit, and debug compared to binary formats. Great for development.

Why Use This GLTF Viewer?

View GLTF files instantly in your browser with full texture support

Perfect for debugging web 3D applications during development

Inspect JSON structure and external texture references

Test GLTF models before integrating into Three.js or Babylon.js

Convert to GLB (binary) or other formats as needed

100% free, no registration, works on all devices

Who Uses This GLTF Viewer?

Web Developers

Preview GLTF models for Three.js, Babylon.js, or WebGL projects. The JSON format makes it easier to debug texture paths and material properties during development.

AR Developers

Test GLTF models for web-based AR applications. While GLB is preferred for production, GLTF is useful for development and debugging.

3D Web Development

Create and test 3D web experiences. GLTF's readable format makes it ideal for learning and prototyping before converting to GLB for production.

Asset Debugging

Debug texture loading issues and material problems. GLTF's JSON structure makes it easy to identify and fix asset reference issues.

GLTF Software Compatibility

GLTF files can be created and used with these popular tools:

Create GLTF Files

• Blender - Export GLTF/GLB from free 3D software
• Substance Painter - Export PBR materials to GLTF
• Adobe Dimension - 3D design with GLTF export
• Sketchfab - Online platform with GLTF download

Web 3D Libraries

• Three.js - Most popular WebGL library with GLTF loader
• Babylon.js - Powerful web rendering engine
• A-Frame - WebVR framework supporting GLTF
• PlayCanvas - Web-first game engine with GLTF support

Frequently Asked Questions

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More 3D File Viewers

STL Viewer

Online STL viewer for 3D printing - Check mesh quality and geometry before printing

GLB Viewer

Free GLB viewer for web and AR - Preview glTF binary models with textures

OBJ Viewer

Online OBJ viewer with material support - View Wavefront 3D models with textures

FBX Viewer

Free FBX viewer online - Preview Autodesk models for games and animation