Browser-local conversion

3MF to STL Converter

Export the final resolved geometry of a 3MF build as one binary STL without uploading your file.

Choose a 3MF file

Converted locally in your browser — your file is not uploaded.

Files must be 25 MiB or smaller so conversion remains safe for this browser.

Drag and drop a file here, or choose a file

3MF to STL is a geometry-only export. Keep the original 3MF if you need its units, separate build items, colours, materials or print settings.

Where a file has multiple build items, this export becomes one resolved STL mesh. The original editable assembly cannot be reconstructed from it.