What this tool does
Use this online 3D viewer to inspect supported 3D files locally without uploading them.
When this tool fits
Best when you need to inspect before conversion
the viewer shows geometry and dimensions before you choose an export path.
Best for comparing supported formats in one place
3MF, GLB, STL, STEP, and STP use the same preview and stats panel.
Best when private files should stay local
files are parsed in the browser instead of being uploaded for preview.
How to use it
- 1
Upload a supported 3D file
Choose a 3MF, GLB, STL, STEP, or STP file from your device.
- 2
Inspect the preview
Use orbit and zoom controls to review the visible mesh.
- 3
Check model stats
Read mesh count, triangle count, dimensions, and diagnostics.
- 4
Choose a converter if needed
Use a related converter page when the next step is STL export.
Specs and limits
- Input
- 3MF, GLB, STL, STEP, and STP
- Output
- Preview only
- Controls
- Orbit and zoom
- Processing
- Local browser parsing
- Limit
- Preview depends on mesh data or successful CAD tessellation
- Viewer output depends on triangulated mesh data.
FAQ
Are files uploaded?
No. Files are loaded locally in your browser.
Can I export STL from the 3D viewer?
No. The 3D viewer is for inspection. Use the 3D file to STL converter when you want STL output.
Why do STEP files show triangles in the viewer?
STEP surfaces are tessellated into a triangle mesh so the browser can render and measure the model.