Open a 3D model without sending it anywhere

Drop a .glb, .gltf, .obj or .stl, turn around it, read its numbers.

zero upload

Drop your model here

or click to browse

.glb, .gltf, .obj, .stl · with their textures · no size limit

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How it works

The tool reads four formats, extracts the geometry and draws it with the 3D engine built into your browser. Grab the view with the mouse or a finger to turn around it. Click inside it once for the scroll wheel to zoom there: until you do, it scrolls the page as usual.

.glb is the compact version of the glTF format, which has become the exchange standard. Everything fits in a single file, textures included.

.gltf is the same format in readable form. It often refers to companion files, a .bin and images.

.obj describes the geometry as text. Its colors and textures live in an .mtl file alongside.

.stl only contains triangles, in binary or text. No color, no texture: it’s the format for 3D printing and machining.

Companion files

A .gltf or .obj isn’t always self-contained. A browser isn’t allowed to read companion files on your disk on its own, and that’s a good thing: that rule is what stops a web page from rummaging through your folders.

The consequence is simple: select the model and its companion files at the same time, or drag them together into the drop zone. The .bin, the .mtl and the images. If one is missing, the tool tells you which one rather than showing an incomplete model without warning.

What the preview shows and doesn’t show

Shown: the shapes, their real position and scale, each material’s base color, its color texture, transparency, and the file’s numbers: vertices, triangles, materials and textures.

Not shown: relief, metal and roughness maps, animations, skeletons, reflections and environment lighting. The light is fixed. It’s a faithful preview of shapes and colors, not a final render.

Two common compressions, Draco and meshopt, aren’t supported. The tool recognizes them and tells you, rather than showing a distorted model.

What it’s for

Receiving a model without having 3D software is common: a file sent by a contractor, a scanned part, an .stl picked up for printing, a downloaded model you want to check before using it. Opening dedicated software for a quick look is overkill, and uploading the file to a platform even more so when the model isn’t public.

Frequently asked questions

Is my model sent anywhere? No. You can check for yourself in thirty seconds: here is how.

What about .fbx? No. It’s a closed Autodesk format with no complete public specification: reading it correctly would require the manufacturer’s library, which this site won’t load. 3D software can export a .glb or .obj, which open here.

Why does the model look gray or all white? Either its material has no texture, or its texture wasn’t dropped with it, or it’s an .stl, a format that carries no color. The tool flags missing companion files.

My texture doesn’t show even though I dropped it. Two possibilities: the model carries no texture coordinates, or the image is in a format the browser doesn’t decode, a .tga or .dds for example. Convert it to .png or .jpg.

Does a very large model work? The limit is your machine’s memory and its graphics processor. A model with several million triangles will display, but rotation will become choppy.

Can I export or edit the model? No, this tool is for viewing.