Why should I check bounding box dimensions before 3D printing?

It's a quick way to catch a model that's the wrong scale entirely -- a mesh modeled in millimeters versus inches can be off by a large factor, and checking the dimensions here catches that before you've wasted material printing it.

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3D Mesh Viewer

Preview and inspect STL, OBJ, and PLY files with a wireframe view

Files never stored

Drop an STL, OBJ, or PLY file to inspect

View a wireframe preview and mesh statistics — entirely in your browser

Works with any file size -- files over 50MB may just take a little longer

What is this tool?

Previews a 3D mesh file (STL, OBJ, or PLY) as a wireframe you can orbit and zoom, along with vertex count, triangle count, and bounding box dimensions, without needing to open dedicated 3D software.

How to use it

Upload your 3D file, then drag on the preview to rotate it and scroll to zoom in or out — it auto-rotates until you interact with it. Use Reset View to return to the default angle.

Checking the bounding box dimensions before sending a file to a 3D printer is a quick way to catch a model that's the wrong scale entirely — a mesh modeled in millimeters versus inches can be off by a large factor.

Watch: 3D Mesh Viewer in Action

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Part of: Converting a 3D File Between Formats

Next: STL ASCII / Binary Converter

Switch STL encoding if your target software needs it

3D Mesh Viewer

What is this tool?

How to use it

Watch: 3D Mesh Viewer in Action

Frequently asked questions