Free Online 3MF to STL Converter

Please note: Your 3MF file, once uploaded to our server will be deleted 1 hour after upload so please download your converted 3MF file before this time.

How to Convert your 3MF to STL Online?

Here are 2 simple steps to convert your 3MF to STL using our fast and free 3MF converter tool.

Upload your 3MF file

Upload your 3MF file

Click the "Upload a 3MF File" button, then select a 3MF to upload. The maximum file size is 100MB.

Download your STL

Download your STL

Click the download link to receive your STL file.

File format information for 3MF and STL

Extension3MF
Full Name3D Manufacturing Format
Type3D Model
Mime Typeapplication/vnd.ms-package.3dmanufacturing-3dmodel+xml
FormatBinary

3MF files are a modern 3D file format designed specifically for use with 3D printable models (additive manufacturing). It was designed to be the successor to the popular legacy STL format (also a common format in 3D printing) to overcome the limitations of that format.

The format of 3MF files is XML based that are compressed with the standard Zip file compression resulting in small, easily transferable files. The format supports 3D meshes along with associated materials and textures all contained within the Zip file.

3MF Converter Capabilities

When converting 3D Model/Mesh files using our [ey] converter we will attempt to convert color materials into a suitable format for use in the converted file.

ExtensionSTL
Full NameStandard Triangle Language
Type3D Model
Mime Typeapplication/vnd.ms-pki.stl
FormatText
Opens WithBlender, MeshLab, CAD Assistant, DAZ Studio

The STL file format has its roots in the 1980's and is the native file format for 3D Systems stereolithography CAD software. The format defines a triangulated mesh with vertices and faces and is a popular format for sharing 3D printable model files.

There were several formats that attempted to extend the STL format namely SolidView and VisCAM whose formats included limited 15-bit color information for each mesh face which is often ignored by most modern 3D software. The STL format can be either Text or Binary, our tools will support both formats.

STL Converter Capabilities

When converting your 3MF to STL our tool will attempt to accurately convert any color/material information.

Information for converting from 3MF to STL

Your 3MF file will be converted to a STL file using our unified 3D model and mesh conversion tool. Our 3MF 3D tool performs accurate conversions of 3D elements such as vertices, faces, normals and relevant material information. As both 3MF and STL support color material information our tool will also attempt to convert the color information too.

Frequently Asked Questions

How can I convert my 3MF file to STL?

First click the "Upload..." button, select your 3MF file to upload. Your 3MF file will be uploaded to our servers. When the 3MF to STL conversion has completed, you can download your STL file straight away.

How long does it take to convert my 3MF to STL?

We aim to process all 3MF to STL conversions as quickly as possible, this usually takes around 5 seconds however this can be longer for certain files, so please be patient.

How accurate is the 3MF to STL conversion?

We aim to provide the best conversion experience. Our tools are under constant review and development with new features being added every week.