3MF to STL Converter

Select files for conversion or just drag and drop them to the upload area

How to convert 3MF files to STL online?

Step 1.

Upload 3MF-file

Click "Choose File" button to select a 3mf file on your computer. 3MF file size can be up to 50 Mb.
Step 2.

Convert 3MF to STL

Click "Convert" button to start conversion.
Step 3.

Download your STL

When the conversion process is complete, you can download the STL file.


  • ❓ How can I convert 3MF to STL?
    First you need to add file for conversion: drag and drop your 3MF file or click the "Choose File" button. Then click the "Convert" button. When 3MF to STL conversion is completed, you can download your STL file.
  • ⏱️ How long does it take to convert 3MF to STL?
    Mesh conversion is pretty fast. You can change 3MF to STL in a few seconds.
  • 🛡️ Is it safe to convert 3MF to STL on AnyConv?
    Of course! We delete uploaded files immediately, and converted ones after 24 hours. No one has access to your files. File conversion (including 3MF to STL) is absolutely safe.
  • 💻 Can I convert 3MF to STL on Mac OS or Linux?
    Yes, you can use AnyConv on any operating system that has a web browser. Our 3MF to STL converter works online and does not require software installation.

Information about 3MF and STL file formats

Name 3MF STL
Full name 3D Manufacturing Format Stereolithography File Format
File extension .3mf .stl
MIME type
Developed by 3MF Consortium 3D Systems
Type of format
Description 3D Manufacturing Format or 3MF is an open source file format standard developed and published by the 3MF Consortium. 3MF is an XML-based data format designed for using additive manufacturing, including information about materials, colors, and other information that cannot be represented in the STL format. STL is a file format native to the stereolithography CAD software created by 3D Systems. This file format is supported by many other software packages. It is widely used for rapid prototyping, 3D printing and computer-aided manufacturing. STL files describe only the surface geometry of a three-dimensional object without any representation of color, texture or other common CAD model attributes. The STL format specifies both ASCII and binary representations. Binary files are more common, since they are more compact.
Technical details As of today, CAD software related companies such as Autodesk, Dassault Systèmes and Netfabb are part of the 3MF Consortium. Other firms in the 3MF Consortium are Microsoft, SLM and HP, whilst Shapeways are also included to give insight from a 3D Printing background. Other key players in the 3D printing and additive manufacturing business, such as Materialise, 3D Systems, Siemens PLM Software and Stratasys have recently joined the consortium. To facilitate the adoption, 3MF Consortium has also published a C++ implementation of the 3MF file format. An STL file describes a raw, unstructured triangulated surface by the unit normal and vertices (ordered by the right-hand rule) of the triangles using a three-dimensional Cartesian coordinate system. In the original specification, all STL coordinates were required to be positive numbers, but this restriction is no longer enforced and negative coordinates are commonly encountered in STL files today. STL files contain no scale information, and the units are arbitrary.
File conversion 3MF conversion STL conversion
Associated programs Autodesk, Microsoft Office and Paint 3D TurboCAD, GOM Inspect, STL Viewer, Geomagic Explorer, Parametric Technology Creo, Dassault Systemes CATIA, KeyCreator, MeshLab, SolidWorks, Pro/Engineer, CloudCompare, Blender, AutoCAD, 3D Studio Max, Autodesk Inventor, Mechanical Desktop
Wiki https://en.wikipedia.org/wiki/3D_Manufacturing_Format https://en.wikipedia.org/wiki/STL_(file_format)
3MF to STL conversion quality rating:
5 (806 votes)
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