3D model informationFREE
Size, triangle count, surface area, volume and whether the model is watertight for 3D printing.
- 1 Add
- 2 Convert
- 3 Download
Drop 3D models here
STL, OBJ, PLY, GLB, FBX. Up to 250 MB each, 10 at once.
Stays on your device
Your files
Done
These files were skipped. Everything else is ready below.
Kept only on this device. If a download is interrupted, reopen this page within an hour and choose Continue.
- STL, OBJ and PLY files don’t record units; sizes are shown in the file’s own units, often millimetres.
Questions about 3D model information
Is 3D model information free?
Yes. It is free to use, with no sign-up, no watermark and no limit on how often.
Are my files uploaded?
No. It runs in your browser, so your files stay on your device and are never sent to us or anyone else. Privacy notice
Which files can I use?
STL, OBJ, PLY, GLB, FBX in, Report out. Up to 60 MB per file, 50 files at a time, 50 megapixels.
Step by step, and if something goes wrong
Steps
- Add one or more 3D models.
- Select Measure.
- Read the size, triangle count, surface area, volume and whether the model is watertight.
If something goes wrong
- Watertight means the surface is closed with no holes, which 3D printers need. Volume is only reliable for watertight models.
- STL, OBJ and PLY don’t store units. Sizes are in the file’s own units, usually millimetres for 3D printing. GLB is always in metres.
- STL, OBJ, PLY, GLB and FBX files are opened on this device. Nothing is uploaded.
- GLB files must be self-contained. Files that use Draco or meshopt compression aren’t supported yet.
- FBX textures stored as separate files aren’t included; the shapes still convert.
Related tools
- 3D model viewerOpen STL, OBJ, PLY, GLB and FBX models and turn, zoom and inspect them.
- Convert 3D modelConvert between STL, OBJ, PLY, GLB, FBX and USDZ, with options to stand models upright and scale them.
- STL to OBJTurn STL files from 3D printing and CAD into OBJ for 3D apps.
- OBJ to STLTurn OBJ models into STL, ready for 3D printing software.
- STL to GLBTurn STL files into GLB for websites, AR and 3D viewers.
- OBJ to GLBTurn OBJ models into a single GLB file for the web and AR.