Online glTF & GLB Viewer
Inspect glTF and GLB models with photorealistic PBR lighting, animation playback, and Draco mesh decompression. Zero server uploads.
Drag & drop your glTF / GLB file here
or click below to select from your device (100% private, zero uploads)
glTF / GLB Technical Specifications & Guidelines
In-depth technical reference for GL Transmission Format 2.0 (The JPEG of 3D).
| Supported Extensions | .gltf, .glb |
| Format Category | Web3D, AR/VR & Real-time Assets |
| File Encoding | JSON with external/embedded binary buffers (glTF) or self-contained binary container (GLB) |
| Compatible CAD & 3D Software | Blender, Substance 3D Painter, Three.js, Godot, Unity, Unreal Engine |
| Specification | Khronos Group glTF 2.0 Standard Specification |
| Color Space | Linear workflow with sRGB texture inputs and ACES filmic tone mapping |
| Mesh Compression | Built-in Google Draco WebAssembly decompression engine |
| Animation Support | Skeletal skinning, morph targets, translation/rotation/scale keyframes |
glTF / GLB Frequently Asked Questions
Everything you need to know about opening, inspecting, and converting glTF / GLB files in your browser.
What is the difference between glTF and GLB?
glTF is an open standard format where the 3D scene description is stored in a JSON file, often linking to external binary buffers (.bin) and images (.png/.jpg). GLB is the binary container format that packages the JSON, binary geometry buffers, and textures into a single self-contained file.
Does Universal 3D Viewer support Draco-compressed GLB files?
Yes. Universal 3D Viewer automatically initializes our compiled WebAssembly Draco decoder when a model uses KHR_draco_mesh_compression, decompressing complex meshes smoothly in seconds.
Can I preview skeletal animations and morph targets?
Yes. When an animated glTF or GLB is loaded, the viewer displays an interactive animation controller with play/pause, loop, frame stepping, and playback speed adjustments.
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microplugins 3D Viewer opens 30+ 3D and CAD formats and exports to GLB, glTF, OBJ, STL, PLY and USDZ.