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ExplainerWhat is glTF / GLB?
glTF stands for GL Transmission Format — an open standard for delivering 3D models efficiently, often called "the JPEG of 3D." GLB is the same thing packed into a single binary file. Together they're the go-to format for 3D on the web, in AR, and in game engines because they're small, fast to load, and supported almost everywhere.
Why glTF exists
Older 3D formats were built for authoring, not delivery — they can be large and inconsistent between tools. glTF was designed by the Khronos Group specifically to transmit a finished model: geometry, materials, textures, and animation in a compact, standardized package a browser or engine can load directly.
glTF vs GLB
- glTF — typically a JSON file that references separate geometry and texture files. Easy to inspect and edit piece by piece.
- GLB — everything bundled into one binary file. Simplest to share and the usual pick for the web.
How it compares to other formats
| Format | Best for | Notes |
|---|---|---|
| glTF / GLB | Web, AR, real-time | Open, compact, materials + animation |
| OBJ | Simple exchange | Universal, but limited material data |
| FBX | Animation pipelines | Feature-rich but proprietary |
| .blend | Editing in Blender | Native Blender scene |
Turn a floor plan into a glTF model
Upload a 2D plan and export a web-ready glTF/GLB — plus CAD, renders, and Blender files.
Get early access →Frequently asked questions
What does glTF stand for?
glTF stands for GL Transmission Format. It's an open standard from the Khronos Group for delivering 3D models efficiently, often described as "the JPEG of 3D" because it's compact and widely supported.
Is GLB the same as glTF?
GLB is the binary version of glTF that packs the model, textures, and data into one file. glTF can instead be a JSON file with separate assets. Same format, different packaging.
glTF vs OBJ vs FBX — which should I use?
Use glTF/GLB for the web, AR, and real-time engines. OBJ is a simple, universal exchange format but carries less material data. FBX is common in animation pipelines but is proprietary. For modern web and cross-tool 3D, glTF is usually the best default.
Can I make a glTF from a floor plan?
Yes — convert the plan to a 3D model and export glTF/GLB. See our guide on exporting a floor plan to glTF.