Convert your STL 3D models to 3MF format using our free online tool. Transform Standard Triangle Language (STL) files into 3D Manufacturing Format (3MF) while maintaining geometry and materials. No Signup Required.
The STL format (Standard Triangle Language or STereoLithography) was developed by 3D Systems in the late 1980s and is one of the most common file formats for 3D printing.
STL files describe only the surface geometry of a 3D object without any representation of color, texture, or other attributes common to other 3D file formats.
3MF (3D Manufacturing Format) was developed by the 3MF Consortium in 2015 as an open standard specifically designed for 3D printing workflows.
This conversion is especially useful when you need to prepare 3D models for 3D printing, as 3MF preserves all manufacturing-related information in a single, compact file.
Converting STL to 3MF involves transforming the geometry information from the STL format into the structured XML-based 3MF format.
The process preserves triangle mesh data and face normals, then restructures them into the 3MF's XML structure with added print-specific metadata.
Our converter ensures that 3D printing-specific information like model orientation, scaling, and positioning are properly added to the 3MF output.
Converting to 3MF offers several advantages for 3D printing: it adds manufacturing data, provides better structure, and is supported by most modern 3D printers and slicing software.
An online STL to 3MF converter allows you to quickly transform 3D models between formats without installing specialized software. It's convenient for converting models from any device with a browser.
Our converter maintains the original geometry and basic material properties. The 3MF format supports advanced material properties and was designed specifically for 3D printing workflows, so you won't lose information.
Conversion time depends on the model size and complexity. Most conversions complete within a few minutes.
Yes, we prioritize your privacy. Your files are securely stored on our servers and automatically deleted after 24 hours to ensure complete privacy and security.
Yes, our STL to 3MF converter is completely free to use without any hidden charges. You just need to create an account to get started.
Your model data is temporarily stored on our secure servers and automatically deleted after 24 hours for your convenience and privacy.
The maximum STL file size limit for conversion is 100MB.