3MF viewer online

Open 3MF files in your browser. Measure distances and holes, cut a section, check it is watertight, and see the print weight. No install, nothing uploaded.

How it works

  1. 1Drop a 3MF file in the box above. It opens in your browser; nothing is uploaded.
  2. 2Drag to orbit, scroll to zoom, right-drag to pan. Front, Top and Side square the camera up.
  3. 3Ruler gives the distance between two points. Face reads the size of a flat face or the diameter of a hole.
  4. 4Section cuts across the height, width or depth to show walls and hollows. Size draws the bounding box.
  5. 5The panel gives the size in millimeters, whether the mesh is watertight, and what it weighs in PLA.

Show a model on your site or repo

Paste the address of a 3MF file that is online, such as one in a GitHub repo, and copy what you need. The file stays where it is: each visitor's browser reads it from there.

View in 3DThe badge, as it shows in a README

README badge (Markdown)

For a GitHub or GitLab README.

[![View in 3D](https://www.voloomcad.com/badges/view-in-3d.svg)](https://www.voloomcad.com/tools/3mf-viewer?url=https%3A%2F%2Fexample.com%2Fpart.3mf)

Embed on a site (HTML)

The viewer with measuring and section, inside your page.

<iframe src="https://www.voloomcad.com/embed/viewer?url=https%3A%2F%2Fexample.com%2Fpart.3mf" width="100%" height="420" style="border:0" allow="fullscreen" loading="lazy" title="3D model"></iframe>
<p><a href="https://www.voloomcad.com/tools/3mf-viewer">3MF viewer</a> by Voloom</p>

Link

https://www.voloomcad.com/tools/3mf-viewer?url=https%3A%2F%2Fexample.com%2Fpart.3mf

It works when the host lets other sites read the file: GitHub, GitLab and most direct download links do. Printables and Thingiverse do not.

About 3MF

3MF (3D Manufacturing Format). The modern printing format from the 3MF Consortium. A zip with named parts, units, colors, and slicer settings. Bambu, Prusa, and Orca save projects in it.

Units: Explicit. Usually millimeters. Up axis: Z. Opens in Bambu Studio, PrusaSlicer, OrcaSlicer, Cura, and Windows.

Questions

Can I measure a 3MF file?
Yes. Ruler measures between any two points, snapping to corners and edges, and splits the distance into X, Y and Z. Face reads a flat face's width and length, or a hole's diameter. Readouts are in millimeters.
How do I check if a 3MF is watertight?
Open it here. The panel counts open edges (the rims of holes), edges shared by more than two triangles, and separate parts. A watertight mesh has none of the first two. If it fails, the STL repair tool fixes most files.
Can I show a model on my site or in a GitHub README?
Yes, when the file is online somewhere that lets other pages read it, such as GitHub. Paste its address under "Show a model on your site or repo" for a README badge, an embed for your site, or a plain link. Printables and Thingiverse do not allow it, so download the file and drop it in here.
Do I need to install anything to open 3MF?
No. It runs in any modern browser, on desktop or phone.
Is my file uploaded?
No. The file is read and converted in your browser. It never reaches our servers.
Is the 3MF viewer free?
Yes, with no limit and no account.
What else opens 3MF files?
Bambu Studio, PrusaSlicer, OrcaSlicer, Cura, and Windows.

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