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Free 3MF-STL-Viewer
open 3MF and STL files

Free viewer for STL files and 3MF files

3MF - Specification and Extensions

The 3MF specification is designed by the 3MF consortium to be open and extensible. The 3MF core contains several extensions for 3D print files:

  • Material and properties extension allows you to save materials and properties in 3D print files.
  • Production extension enables production information to be saved.
  • Beam-Lattice extension enables more efficient saving of uniform lattice structures.
  • Slice extension enables the saving of slice information.
  • Security extension enables the implementation of digital rights management (DRM).
  • Volume extension enables the storage of volume information.

How Do I Convert STL and 3MF Files?

Conversion between triangulated formats is relatively simple. Even the Basic version of the 3D-Tool CAD Viewer supports the import and export of common MESH formats, including converting 3MF to STL, 3MF to OBJ and 3MF to 3D-PDF.

On the Internet you often find the question of how to convert STL to STEP or, in general, any triangulated formats such as STL, 3MF, 3DS, PLY into an exact 3D CAD format. Automatic conversion is not possible. Using special software, the many triangles of the model must be converted more or less manually into exact surfaces (reverse engineering).

Test the STL Viewer and 3MF Viewer

3D-Tool is an intuitive CAD viewer available in one free and three commercial license versions, but always with professional information and measurement features.

  • The 3D-Tool Free Viewer can open STL and 3MF files, but it cannot export 3D formats. To use it, simply download it from our website.
  • 3D-Tool Basic opens 3D visualization formats such as STL, 3DS, OBJ, PLY and VRML.
  • 3D-Tool Advanced opens additionally the 3D exchange formats STEP, IGES, VDA, SAT and Parasolid.
  • 3D-Tool Premium, which includes the 3D-NativeCAD Converter, opens and converts native 3D models from CATIA, Siemens NX, Creo, Inventor, Solid Edge, SolidWorks, Rhino and AutoCAD, as well as the 3D exchange formats STEP, IGES, VDA, SAT, Parasolid and JT.

Download the 3D-Tool, start it, and request a trial key. Test all functions, interfaces, and the 3D-NativeCAD Converter for 14 days.

More information on the 3D-Tool CAD-Viewer and Converter

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