Every object in the file, placed where the project places it on every plate, in the colours the file gives it (its base materials and colour groups), with the number of objects and triangles and the size in millimetres. A Bambu Studio project with 9 objects showed all 9; the 3MF Consortium's chain sample showed its 9 colours.

Do I need Bambu Studio or another slicer?

No. It opens in any current browser with WebGL, on Windows, macOS, Linux, ChromeOS, iPhone and Android, with nothing to install. Very large prints are easier on a computer than on a phone.

Does it show print settings and painted colours?

No. Layer height, filaments and other settings are the slicer's own data, and so is multi-colour painting done in Bambu Studio, Orca or PrusaSlicer: the shape shows in its plain colour. Open the file in your slicer for those.

Can I convert it after looking?

Yes, on the same page: to an STL at its real size, to a GLB for the web, AR and game engines, or to an OBJ.

No. The 3MF is unpacked and drawn by your own browser, in this tab. Nothing is sent to a server or stored, and closing the tab releases it.

Free browser tool

3MF viewer online.

Open a 3MF and see every object, its colours and its size in millimetres: a Bambu Studio, Orca or PrusaSlicer project, or a MakerWorld or Printables download, with no slicer to install. Your file never leaves your device.

Your model, on the stage

GLB, glTF, FBX, OBJ, STL, 3MF or a .zip · Up to 150 MB · No upload

Drop a model to convert it.

A .glb, .gltf, .fbx, .obj, .stl or .3mf, with its textures (or the whole folder). Check it in 3D, then download it in the format you need.

Your files stay in this browser tab.

Open a .glb, a .gltf with its files, an .fbx, .obj, .stl or .3mf, or a .zip of any of them. Select it together with the files it uses (a .gltf's .bin, an .obj's .mtl, textures), or drop the whole folder. A Mixamo character's FBX selected together with its animation FBXs becomes one GLB with every animation. Several models at once (an asset pack's folder or .zip) are converted or made smaller together and download as one .zip. Files are neither uploaded nor saved. Closing the model or leaving this page releases them.

Create a model in the studio →

How it works

Drop the .3mf, or the .zip it came in. Its objects open in 3D, with their count and size in millimetres above the stage.
Drag to orbit it, scroll or pinch to zoom, and switch to Wireframe to see the mesh.
Need another format? Convert it right there to STL, GLB or OBJ.

Have a GLB, FBX or OBJ instead? The GLB viewer opens those, and GLB to 3MF makes a print-ready 3MF from them.

More free 3D file tools

Questions

What does it show?: Every object in the file, placed where the project places it on every plate, in the colours the file gives it (its base materials and colour groups), with the number of objects and triangles and the size in millimetres. A Bambu Studio project with 9 objects showed all 9; the 3MF Consortium's chain sample showed its 9 colours.
Do I need Bambu Studio or another slicer?: No. It opens in any current browser with WebGL, on Windows, macOS, Linux, ChromeOS, iPhone and Android, with nothing to install. Very large prints are easier on a computer than on a phone.
Does it show print settings and painted colours?: No. Layer height, filaments and other settings are the slicer's own data, and so is multi-colour painting done in Bambu Studio, Orca or PrusaSlicer: the shape shows in its plain colour. Open the file in your slicer for those.
Can I convert it after looking?: Yes, on the same page: to an STL at its real size, to a GLB for the web, AR and game engines, or to an OBJ.
Is my file uploaded?: No. The 3MF is unpacked and drawn by your own browser, in this tab. Nothing is sent to a server or stored, and closing the tab releases it.