glTF Viewer
Open a .gltf together with its .bin and texture files to check materials, animations and geometry, then pack it into a single GLB.
- PBR materials
- Animations
- Draco & meshopt
- No upload
Drop a glTF file here, together with its textures and material files.
Drag to rotate · scroll or pinch to zoom · right-drag or two fingers to pan
What is glTF?
glTF (GL Transmission Format) 2.0 is the Khronos Group standard for delivering 3D scenes efficiently. A .gltf file is JSON describing the scene, meshes, PBR materials, cameras and animations, and points to binary buffers (.bin) and images. Because the parts are separate files, you need to open them together: select or drop the .gltf with its .bin and textures and the viewer matches them by file name. Missing files are listed instead of silently failing, and you can export the result as a single GLB.
How to view a glTF file
- Choose Open File and pick your glTF file (add its textures or material files too), or drag them onto the viewer.
- Drag to rotate, scroll or pinch to zoom, and right-drag or two-finger drag to pan.
- Switch between shaded, wireframe and X-ray, use the view buttons, or cut a section to see inside.
- Read the size, volume and triangle count, measure between two points, then export or take a snapshot.
Getting textures to show
- Select the model and all its texture and material files together (or drag the whole set) so the viewer can match them by name.
- For glTF, include the .bin file and the texture images; GLB already contains them.
- For OBJ, include the .mtl file named in the OBJ and the images it refers to.
- Any file that is missing is listed, and a blank texture is used in its place.
Why use this glTF viewer
- Many formats, one viewerSTL, OBJ (with MTL and textures), GLB, glTF, FBX, PLY, 3MF, DAE, 3DS, AMF and VRML. Draco and meshopt-compressed glTF work too.
- Measure, not just lookDimensions, triangle count, surface area, volume and a watertight check, plus click-to-measure distances and a section view.
- Export to other formatsSave the model as binary STL, OBJ, GLB or PLY, and take a PNG snapshot of the current view.
- Your model stays on your deviceFiles are read and rendered in your browser with WebGL. Nothing is uploaded, so unreleased products, client work and scans stay private.
Supported 3D formats
| Format | Files | Typical use |
|---|---|---|
| STL | .stl | Triangles only (ASCII or binary); the standard for 3D printing |
| 3MF | .3mf | Modern print format with objects, colours and units |
| OBJ | .obj + .mtl | Text format from modelling tools; materials and textures in separate files |
| glTF / GLB | .gltf, .glb | Web and AR standard with PBR materials and animations |
| FBX | .fbx | Autodesk exchange format for animation and game engines |
| PLY | .ply | Scans and point clouds, often with vertex colours |
| Collada, 3DS, AMF, VRML | .dae, .3ds, .amf, .wrl | Older exchange and print formats |
Common uses
- Asset review. Check a model from a client, marketplace or AI generator.
- Format checks. Confirm textures and materials made it through an export.
- Animations. Preview rigged FBX and glTF animations.
- Quick conversion. Turn OBJ into GLB or FBX into STL.
More file tools: view SVG images as PNG, inspect photo metadata or convert images to ICO icons.
Example: glTF to GLB
Select scene.gltf, scene.bin and the four PNG textures together. Check the model, then choose Export → GLB to get one self-contained file.
What to expect from the result
Colour STL variants are shown when present. Volume and weight assume a closed mesh. Extremely large files are limited by your browser’s memory.
glTF Viewer questions
Why does my glTF show no textures or fail to load?
A .gltf file refers to separate .bin and image files. Open them all at once (select multiple files or drag the folder’s contents) so the viewer can find them.
How do I convert glTF to GLB?
Open the glTF with its files, then choose Export → GLB. The GLB contains the geometry, materials, textures and animations in one file.
Which glTF extensions are supported?
Common ones including Draco and meshopt compression, texture transforms, unlit, emissive strength, clearcoat, transmission and sheen materials. KTX2 textures are not supported.
How large a file can I open?
It depends on your device’s memory and graphics. Models with a few million triangles open on most laptops; very large scans may be slow on phones.
Are my 3D files uploaded?
No. The viewer runs entirely in your browser using WebGL; the file is never sent to a server and the page keeps working offline once loaded.