Opens a 3D model - GLB and GLTF (compressed ones too), FBX, OBJ with its materials, STL, PLY, 3MF, DAE, 3DS, VRML, AMF or SketchUp - and lets you orbit, pan and zoom around it, then save a PNG of the view or convert the model to GLB, STL, OBJ or USDZ.
A quick way to check a mesh before printing or importing it, or to turn an FBX into a GLB or a GLB into an STL, without installing Blender. It is free to use, with no account and no upload limit, and it runs entirely in your browser: nothing is uploaded, and while the page stays open, a feature you have already used keeps working offline.
- Which 3D file format should I use?
- STL is what most 3D printers and CAD exports produce, and is geometry only. GLTF and GLB carry materials, colours and scenes, so they look far closer to what the model was meant to look like.
- Why is my model grey and featureless?
- STL usually carries no material information - only the shape. That is not a fault, it is the format. An OBJ keeps its colours in a separate .mtl file and its textures in image files: choose those together with the .obj and they are used. FBX and DAE textures likewise need their image files chosen with the model, unless they are embedded. Untick Model’s own colours to check that the colours are there at all.
- How do I convert FBX to GLB, or OBJ to STL?
- Open the model, then press .glb, .stl, .obj or .usdz under Save as. GLB keeps materials and textures in one file and suits Blender, game engines and websites. STL and OBJ save the shape for 3D printing and other 3D programs. USDZ opens in AR Quick Look on an iPhone or iPad. Animations and rigs are not carried over.
- Can it open USDZ files?
- Not yet. The USDZ files Apple’s apps make store the model in a binary form the 3D engine here does not read. It can save any model it opens as USDZ, though.
- Why does my GLB say it uses Draco or meshopt?
- Those are ways of compressing the geometry, and KTX2 compresses textures; tools such as gltfpack and glTF-Transform apply them to make files smaller. They open here like any other GLB, with the decoders loaded only when a file needs them.
- Is my model uploaded?
- No. It is parsed and rendered in the page with three.js. A product design or an unreleased part stays on your machine.
- How large a model can it open?
- Large ones work, but everything is held in your browser's memory and drawn by your own graphics hardware, so a very dense scan will be slow on a modest machine.
- Can I edit or measure the model?
- No. This is a viewer - open it, look at it, capture a picture of it.