VTK to STL Converter

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

How to convert VTK files to STL online?

Step 1.

Upload VTK-file

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

Convert VTK 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 VTK to STL?
    First you need to add file for conversion: drag and drop your VTK file or click the "Choose File" button. Then click the "Convert" button. When VTK to STL conversion is completed, you can download your STL file.
  • ⏱️ How long does it take to convert VTK to STL?
    Mesh conversion is pretty fast. You can change VTK to STL in a few seconds.
  • 🛡️ Is it safe to convert VTK 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 VTK to STL) is absolutely safe.
  • 💻 Can I convert VTK to STL on Mac OS or Linux?
    Yes, you can use AnyConv on any operating system that has a web browser. Our VTK to STL converter works online and does not require software installation.

Information about VTK and STL file formats

Full name Visualization Toolkit Data File Stereolithography File Format
File extension .vtk .stl
MIME type
Developed by Kitware Inc. 3D Systems
Type of format
Description The Visualization Toolkit (VTK) is open source software for manipulating and displaying scientific data. It comes with state-of-the-art tools for 3D rendering, a suite of widgets for 3D interaction, and extensive 2D plotting capability. VTK is part of Kitware’s collection of supported platforms for software development. The platform is used worldwide in commercial applications, as well as in research and development. 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 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 VTK conversion STL conversion
Associated programs Molekel, ParaView, VisIt, VisTrails, MOOSE, 3DSlicer, QGIS 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/VTK https://en.wikipedia.org/wiki/STL_(file_format)