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, .PLY, .VOX
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?
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
What is a GLTF file?
GLTF (GL Transmission Format) is an open standard 3D file format for web delivery. It uses JSON with external texture files, making it human-readable and easy to debug. For production, the binary GLB format is often preferred.
What's the difference between GLTF and GLB?
Both are glTF formats. GLTF is JSON-based with external textures (human-readable), while GLB is binary with embedded textures (more efficient). Use GLTF for development and debugging, GLB for production deployment.
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 websites, GLB (binary version) is typically preferred for faster loading.
Why choose GLTF over GLB?
Choose GLTF during development because its JSON structure is easier to debug. You can inspect texture paths, materials, and scene structure in a text editor. For production, convert to GLB for better performance.
Can I convert GLTF to other formats?
Yes. Upload your GLTF file in this viewer and export to GLB (recommended for production), OBJ, or STL formats as needed.
Is this GLTF viewer free?
Yes, completely free. No registration, no watermarks, no limitations. All processing happens in your browser, so your files stay private.
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