3D Model Viewer GLB, GLTF, OBJ & STL
Upload a GLB, GLTF, OBJ, or STL file and inspect it directly in your browser using WebGL no software to install, no account required, and nothing ever leaves your device. Orbit with a left-click drag, zoom with the scroll wheel, and pan with a right-click drag.
Supported Formats
The viewer currently supports four 3D file types:
- GLB / GLTF the preferred web-3D format; supports materials, textures, and animations.
- OBJ the widely-used geometry-only format from 3D DCC tools like Blender, Maya, and Cinema 4D.
- STL the standard format for 3D printing and CAD exports (binary and ASCII).
FBX, USDZ, STEP, IGES, and PLY are not currently supported. If you have a file in one of those formats, convert it to GLB first using Blender (File → Export → glTF 2.0) or an online converter.
What You Can Do
- Orbit, zoom, pan full mouse and touch controls via Three.js OrbitControls.
- Wireframe mode toggle to see raw mesh topology.
- Grid overlay show or hide the reference plane.
- Lighting control adjust ambient intensity with the slider.
- Background presets six backdrop colours for better contrast.
- Geometry stats vertex count, triangle count, mesh count, and file size shown after load.
Who Is It For?
Designers & 3D artists quick sanity-check before handing off to a developer or client.
Developers verify an exported GLB renders correctly before embedding it in a web project.
Engineers & makers preview an STL fresh from CAD before sending it to a slicer or printer.
Students open 3D files from course materials without needing a licensed DCC application.
Frequently Asked Questions
Does the viewer upload my file to a server?
No. The file is read locally with the File API and passed directly to Three.js running in your browser. It is never sent over the network.
Which 3D file formats are supported?
GLB, GLTF, OBJ, and STL. FBX, USDZ, STEP, IGES, PLY, and DAE are not currently supported.
My OBJ file looks grey where are the textures?
OBJ materials are defined in a separate .mtl file and texture images, which cannot be bundled into a single upload. Load just the .obj and the viewer applies a default material. For full materials and textures, export to GLB from Blender it packages everything into one file.
The model loaded but I can't see anything what's wrong?
The camera auto-fits to the model's bounding box on load. If the scene still looks empty, click the reset-camera button (↺) in the top-right corner of the viewport. Very large or very small models occasionally need a manual zoom after reset.
How do I convert my FBX or USDZ to a supported format?
Open the file in Blender (free, cross-platform) and export it as glTF 2.0 / GLB. That produces a single self-contained .glb file that works perfectly in this viewer.
Is there a file size limit?
There is no hard limit enforced by the tool it depends on the memory available in your browser tab. Models under 50 MB load without issues on most modern devices; very heavy scenes may be slow or crash the tab.