glTF (.gltf)
glTF (GL Transmission Format) is the 'JPEG of 3D' — the standard for 3D content on the web and in AR/VR.
Quick Facts
- File Extension
- .gltf
- MIME Type
- model/gltf+json
- Category
- 3D Model
- Full Name
- glTF
What is glTF?
glTF, or GL Transmission Format, has rapidly become the industry standard for delivering 3D content across the web and in real-time applications. Often referred to as the "JPEG of 3D," it was developed by the Khronos Group to solve the fragmentation and inefficiency issues plaguing earlier 3D file formats. Unlike proprietary formats that require heavy conversion, glTF is designed for minimal file size and fast loading, making it ideal for AR, VR, and interactive web experiences powered by technologies like WebGL and Three.js.
At its core, glTF acts as a runtime asset delivery format. It can be stored as a JSON-based text file (.gltf) or a binary blob (.glb) that bundles geometry, materials, textures, and animations into a single efficient package. The format fully supports Physically Based Rendering (PBR) materials, ensuring that models look consistent and realistic across different engines and browsers. By prioritizing performance and interoperability, glTF has enabled a new generation of immersive web applications, e-commerce product viewers, and digital twin technologies without sacrificing visual fidelity.
Technical Specifications
| Developer | Khronos Group |
| First Released | 2015 (Version 1.0) |
| Type | 3D Scene/Model Format |
| Compression | Draco, Basis Universal (via extensions) |
| Max Resolution/Size | Memory Dependent (Theoretically Unlimited) |
| Color Depth | 8-bit to 16-bit per channel (HDR supported) |
Pros & Cons
+Advantages
- •Optimized for real-time rendering and fast web loading
- •Open standard with royalty-free licensing
- •Native support for PBR materials and animations
- •Universal compatibility with WebGL and Three.js
−Disadvantages
- •Less support in legacy CAD and modeling software
- •Binary .glb files are harder to debug than text .gltf
- •Advanced texture compression requires specific build pipelines
Common Use Cases
E-commerce product visualization and configurators
Web-based Augmented Reality (AR) experiences
Real-time 3D games and interactive simulations
Digital twins for IoT and industrial dashboards
Convert from glTF
Convert .gltf files to other formats.
Convert glTF (.gltf) files to OBJ (.obj) format. Transform your GLTF files to OBJ quickly and easily with File ConverterX — completely free.
Convert glTF (.gltf) files to STL (.stl) format. Transform your GLTF files to STL quickly and easily with File ConverterX — completely free.
Convert glTF (.gltf) files to FBX (.fbx) format. Transform your GLTF files to FBX quickly and easily with File ConverterX — completely free.
Convert glTF (.gltf) files to GLB (.glb) format. Transform your GLTF files to GLB quickly and easily with File ConverterX — completely free.
Convert glTF (.gltf) files to JSON (.json) format. Transform your GLTF files to JSON quickly and easily with File ConverterX — completely free.
Convert glTF (.gltf) files to 3DS (.3ds) format. Transform your GLTF files to 3DS quickly and easily with File ConverterX — completely free.
Convert glTF (.gltf) files to 3MF (.3mf) format. Transform your GLTF files to 3MF quickly and easily with File ConverterX — completely free.
Convert glTF (.gltf) files to COLLADA (.dae) format. Transform your GLTF files to DAE quickly and easily with File ConverterX — completely free.
Convert glTF (.gltf) files to PLY (.ply) format. Transform your GLTF files to PLY quickly and easily with File ConverterX — completely free.
Convert glTF (.gltf) files to STEP (.stp) format. Transform your GLTF files to STP quickly and easily with File ConverterX — completely free.
Convert to glTF
Convert other files to .gltf format.
Convert OBJ (.obj) files to glTF (.gltf) format. Transform your OBJ files to GLTF quickly and easily with File ConverterX — completely free.
Convert STL (.stl) files to glTF (.gltf) format. Transform your STL files to GLTF quickly and easily with File ConverterX — completely free.
Convert FBX (.fbx) files to glTF (.gltf) format. Transform your FBX files to GLTF quickly and easily with File ConverterX — completely free.
Convert GLB (.glb) files to glTF (.gltf) format. Transform your GLB files to GLTF quickly and easily with File ConverterX — completely free.
Convert XML (.xml) files to glTF (.gltf) format. Transform your XML files to GLTF quickly and easily with File ConverterX — completely free.
Convert 3DS (.3ds) files to glTF (.gltf) format. Transform your 3DS files to GLTF quickly and easily with File ConverterX — completely free.
Convert 3MF (.3mf) files to glTF (.gltf) format. Transform your 3MF files to GLTF quickly and easily with File ConverterX — completely free.
Convert AMF (.amf) files to glTF (.gltf) format. Transform your AMF files to GLTF quickly and easily with File ConverterX — completely free.
Convert Blender (.blend) files to glTF (.gltf) format. Transform your BLEND files to GLTF quickly and easily with File ConverterX — completely free.
Convert COLLADA (.dae) files to glTF (.gltf) format. Transform your DAE files to GLTF quickly and easily with File ConverterX — completely free.
Convert DXF (.dxf) files to glTF (.gltf) format. Transform your DXF files to GLTF quickly and easily with File ConverterX — completely free.
Convert IFC (.ifc) files to glTF (.gltf) format. Transform your IFC files to GLTF quickly and easily with File ConverterX — completely free.
Convert LWO (.lwo) files to glTF (.gltf) format. Transform your LWO files to GLTF quickly and easily with File ConverterX — completely free.
Convert Model 3D (.m3d) files to glTF (.gltf) format. Transform your M3D files to GLTF quickly and easily with File ConverterX — completely free.
Convert MD2 (.md2) files to glTF (.gltf) format. Transform your MD2 files to GLTF quickly and easily with File ConverterX — completely free.
Convert OFF (.off) files to glTF (.gltf) format. Transform your OFF files to GLTF quickly and easily with File ConverterX — completely free.
Convert PLY (.ply) files to glTF (.gltf) format. Transform your PLY files to GLTF quickly and easily with File ConverterX — completely free.
Convert RAW (.raw) files to glTF (.gltf) format. Transform your RAW files to GLTF quickly and easily with File ConverterX — completely free.
Convert STEP (.step) files to glTF (.gltf) format. Transform your STEP files to GLTF quickly and easily with File ConverterX — completely free.
Convert STEP (.stp) files to glTF (.gltf) format. Transform your STP files to GLTF quickly and easily with File ConverterX — completely free.
Convert USD (.usd) files to glTF (.gltf) format. Transform your USD files to GLTF quickly and easily with File ConverterX — completely free.
Convert USDA (.usda) files to glTF (.gltf) format. Transform your USDA files to GLTF quickly and easily with File ConverterX — completely free.
Convert USDC (.usdc) files to glTF (.gltf) format. Transform your USDC files to GLTF quickly and easily with File ConverterX — completely free.
Convert USDZ (.usdz) files to glTF (.gltf) format. Transform your USDZ files to GLTF quickly and easily with File ConverterX — completely free.
Convert X3D (.x3d) files to glTF (.gltf) format. Transform your X3D files to GLTF quickly and easily with File ConverterX — completely free.
Frequently Asked Questions
.gltf files are text-based JSON that reference external assets, while .glb files are binary and bundle all assets into a single file for easier distribution.
Need to convert glTF files?
File ConverterX supports converting .gltf files to and from dozens of formats — completely free.
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