CTM to STL Converter

Batch convert ctm files to stl format online for free

Choose files or drag & drop them here.
Only you have access to your files.
All files will be deleted after one hour.

How to convert CTM files to STL online?

Step-by-step guide to convert ctm to stl using AnyConv. It works on PC (Windows, Mac, Linux) and mobile devices (iPhone, Android).

Upload CTM-file

Drag and drop your CTM file into the upload area. The maximum file size is 100 MB.


Click "Convert" to change ctm to stl. The conversion usually takes a few seconds.

Download your STL

Now you can download the STL file. The download link only works on your device.


  • ❓ How can I convert files from CTM to STL?
    First you need to add file for conversion: drag and drop your CTM file or click the "Choose File" button. Then click the "Convert" button. When CTM to STL conversion is completed, you can download your STL file.
  • ⏱️ How long does it take to convert CTM to STL?
    Mesh conversion is pretty fast. You can change CTM to STL in a few seconds.
  • 🛡️ Is it safe to convert CTM to STL on AnyConv?
    Of course! We delete uploaded files immediately, and converted ones after 1 hour. No one has access to your files. File conversion (including CTM to STL) is absolutely safe.
  • 💻 Can I convert CTM to STL on Mac OS or Linux?
    Yes, you can use AnyConv on any operating system that has a web browser. Our CTM to STL converter works online and does not require software installation.

Information about CTM and STL file formats

🔸 File format CTM STL
🔸 Full name OpenCTM Data File Stereolithography File Format
🔸 File extension .ctm .stl
🔸 MIME type application/octet-stream model/stl, model/x.stl-ascii, model/x.stl-binary
🔸 Developed by Marcus Geelnard 3D Systems
🔸 Type of format
🔸 Description OpenCTM is a 3D geometry technology for storing triangle-based meshes in a compact format. OpenCTM is an open-source project that has evolved around technology for compressing 3D triangle meshes. OpenCTM uses a triangle index array to represent the triangle connectivity information and several arrays for representing vertex data (vertex coordinates, normals, UV coordinates, and custom vertex attributes). STL is a file format native to the stereolithography CAD software created by 3D Systems. Many other software packages support this file format. 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 representing 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 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. All STL coordinates were required to be positive numbers in the original specification, but this restriction is no longer enforced, and negative coordinates are commonly encountered in STL files today. As a result, STL files contain no scale information, and the units are arbitrary.
🔸 File conversion CTM conversion STL conversion
🔸 Associated programs OpenCTM 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/OpenCTM https://en.wikipedia.org/wiki/STL_(file_format)
CTM to STL Conversion Quality Rating
4.7 (812 votes)
Convert and download at least one file to rate.