What is preserved
Core meshes, components, and base materials are supported; some material properties are partial.
Free · No signup · Browser-local
3MF Viewer
Inspect a 3MF package before opening a slicer or manufacturing application.
View locally
Select your 3MF file
Choose a local 3D file to start the preview.
What can be lost or unsupported
- Advanced extensions may be unsupported
- Production metadata is not fully surfaced
- Viewing is not slicer validation
How to use this tool
- Choose a local .3mf file under 100 MB.
- Wait for the preview and statistics.
- Orbit, pan, zoom, and inspect the model.
Common uses
- Preview a 3MF download
- Check dimensions and triangle count
- Inspect geometry before conversion
Frequently asked questions
Are my files uploaded?
No. Model parsing, preview, and export run in your browser.
Is the conversion lossless?
No format conversion is described as lossless. Review the format-specific warnings above before using the output.
What is the file-size limit?
100 MB is a safety ceiling, not a guarantee. Mobile devices may need substantially smaller files.