Our free and fast tool will convert most 3D mesh or VTK (Visualization Toolkit) model files to a standard OBJ (Wavefront) file that can then be edited further in most popular 3D editing packages such as Blender or 3D printed without any further processing. Our conversion tool can also batch convert multiple VTK files; up to 25 files at a time can be converted.
To convert your VTK file, click the Upload button above and select the file to convert. Once selected, the file will be converted to a OBJ file and will be ready for download shortly afterwards. For more information about the VTK to OBJ conversion process, see the conversion information section below.
| Extension | VTK |
| Full Name | Visualization Toolkit |
| Type | 3D Model |
| Mime Type | application/octet-stream |
| Format | Text |
| Tools | VTK Converters, 3D Model Voxelizer, Create VTK Animation, Text to VTK, VTK Viewer |
The VTK file format is a 3D modeling and graphics format supported by the Visualization Toolkit. Created in the '90s, the Visualization Toolkit provides a series of data and visual tools for advanced 3D modeling applications. Some example functions of the toolkit include polygon simplification, mesh repair and smoothing, and more.
The format has evolved over the years. It started out as a simple text-based format that could be edited within a simple text editor. Additional features have been added over the years, with the most recent version of the format supporting an XML-based format.
Our tool will export only polygon or triangle-strip-based mesh data. Textures and compressed binary data are not supported and will be ignored.
| Extension | OBJ |
| Full Name | Wavefront |
| Type | 3D Model |
| Mime Type | text/plain |
| Format | Text |
| Tools | OBJ Converters, 3D Model Voxelizer, Create OBJ Animation, Compress OBJ, OBJ Asset Extractor, Text to OBJ, OBJ Viewer |
| Open With | Daz Studio, MeshLab, CAD Assistant |
The OBJ file format, originally created by Wavefront Technologies and later adopted by many other 3D software vendors, is a simple text-based file format for describing 3D models/geometry. This data can include vertices, faces, normals, texture coordinates, and references to external texture files.
As the format is text-based, it is relatively straightforward to parse in 3D modeling applications. A downside of the text-based format is that the files can be rather large compared to similar binary formats such as STL and compressed files such as 3MF.
Our tool will save any material and texture files separately; these additional files will be included with your final OBJ file at the time of download.
Converting from the VTK file format to OBJ can be a complex process, and any tool used for this conversion process needs to be able to handle a variety of data conversion tasks as well as identify any defects within the 3D model and fix them. Here we will explain the conversion process used by our tool to accurately convert your VTK file to a valid OBJ 3D model. Let's start with the conversion process, which involves the following steps:
In its simplest form, an VTK file is a plain text file containing human-readable 3D data such as vertices, faces, normals, and more. When combined, these make up the 3D model you see on your screen.
For more information regarding the VTK file format, please see this great article that goes into a lot of detail explaining the VTK format.
With the VTK file data read, our tool generates an internal representation of the full 3D model and will attempt to fix any geometry issues encountered. Along with repairing any issues with the 3D model, the tool will remove any duplicated vertices and prepare the model for exporting to the OBJ format.
The OBJ format has been around for many years and has become a standard format for 3D modeling. Most 3D modeling software can open OBJ files, which means our tool now needs to take the in-memory 3D model we created in step 2 and convert it to the OBJ format, ensuring it can be opened in all 3D modeling software with no compatibility issues.
Yes! If your VTK file contains textured geometry, the texture image files along with the texture coordinates (UV data) will be exported with the final OBJ file.
We aim to process all VTK to OBJ conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.
We aim to create the most accurate conversions with our tools. Our tools are under constant development with new features and improvements being added every week.
Yes, of course! We do not store the VTK file you submit to us. The resulting OBJ file, once created is deleted 15 minutes after upload and the download link will expire after this time.
No. All our conversion tools process your VTK file on our dedicated conversion servers, meaning you can use our tools on low-spec computers, laptops, tablets, and mobile devices and receive your converted OBJ file quickly.
Yes! Our VTK to OBJ tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.
Yes. Although you can use an Ad Blocker, if you like our VTK conversion tool please consider white-listing our site. When an Ad Blocker is enabled there are some conversion limits on some of our tools and processing/conversion times will be longer.
Yes. When you have converted your VTK to OBJ, there is a "Feedback" option that you can use to let us know of any issues you encountered when converting your file.
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