to

Convert Your 3D Mesh/Model ITSX Files to 3MF

Our free and fast tool will convert your 3D ITSX (ImageToSTL.com Project) model files to a standard 3MF (3D Manufacturing Format) file that can then be edited further in most popular 3D editing packages or 3D printed without any further processing. Our conversion tool can also batch convert multiple ITSX files; up to 200 files at a time can be converted.

To convert your ITSX file, click the Upload button above and select the file to convert. Once selected, the file will be converted to a 3MF file and will be ready for download shortly afterwards. For more information about the ITSX to 3MF conversion process, see the conversion information section below.

How to Convert your ITSX to 3MF Online?

Here are two simple steps to convert your ITSX to 3MF.

Upload a ITSX File

Click the "Upload a ITSX File" button and select a ITSX to upload. The maximum file size is 500MB.

Download your 3MF File

Click the download link once completed to receive your 3MF file.

File Format Information for ITSX to 3MF

ExtensionITSX
Full NameImageToSTL.com Project
Type3D Model
Mime Typeapplication/octet-stream
FormatBinary
ToolsITSX Converters, 3D Model Voxelizer, Create ITSX Animation, ITSX Viewer

Description

The ITSX file format is a 3D file format used to store simple 2D image data in a way that allows it to be represented in 3D space. It is the native format of the ImageToSTL.com Image to 3D Model tool and was devised as a means to allow users to create and store 3D models from a simple image either through the extrude or height map processes.

An ITSX file consists of a main data file containing the position, rotation, and scale of the 2D object that is to be projected into 3D space. Along with the data file is the uploaded image file, and all these files are packed into a ZIP container with the ITSX file extension.

Extension3MF
Full Name3D Manufacturing Format
Type3D Model
Mime Typeapplication/vnd.ms-package.3dmanufacturing-3dmodel+xml
FormatBinary
Tools3MF Converters, 3D Model Voxelizer, Create 3MF Animation, Compress 3MF, 3MF Asset Extractor, Text to 3MF, 3MF Viewer

Description

3MF files are a modern 3D file format designed specifically for use with 3D printable models (additive manufacturing). It was designed to be the successor to the popular legacy STL format (also a common format in 3D printing) to overcome the limitations of that format.

The format of 3MF files is XML-based and compressed with standard Zip file compression, resulting in small, easily transferable files. The format supports 3D meshes along with associated materials and textures, all contained within the Zip file.

3MF Notes

3MF files support material and color information. If your uploaded model contains color information, our tool will attempt to save this in the 3MF file at the end of the conversion process. Textures are supported and will be included in the final 3MF file.

Supported Features

  • Mesh geometry
  • Face and vertex colors
  • Textures

Comparing ITSX and 3MF Features

 

ITSX Features

  • Mesh Geometry (Vertices and Faces)
  • Vertex Normals
  • Face Normals
  • Vertex Colors
  • Face Materials (Excluding textures)
  • Textures
  • Point Cloud
  • Multiple Objects Per File
  • Object Transforms (Translation, Rotation, and Scale)
  • Bones/Joints
  • Animations
  • Suitable for 3D Printing

3MF Features

  • Mesh Geometry (Vertices and Faces)
  • Vertex Normals
  • Face Normals
  • Vertex Colors
  • Face Materials (Excluding textures)
  • Textures
  • Point Cloud
  • Multiple Objects Per File
  • Object Transforms (Translation, Rotation, and Scale)
  • Bones/Joints
  • Animations
  • Suitable for 3D Printing

How does it work?

Converting from the ITSX file format to 3MF 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 ITSX file to a valid 3MF 3D model. Let's start with the conversion process, which involves the following steps:

Step 1: Read the Source ITSX File

In its simplest form, an ITSX file is a binary data file containing 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 ITSX file format, please see this great article that goes into a lot of detail explaining the ITSX format.

Step 2: Process File Data

With the ITSX 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 3MF format.

Step 3: Saving to the 3MF Format

The 3MF file format is relatively new and its primary aim is to become the standard for storing and distributing 3D models for 3D printing applications. Most modern 3D printing software can open 3MF files.

Our tool will now take the in-memory 3D model we have created in step 2 and convert this to the 3MF format ensuring it is compatible with any 3D printing software that supports 3MF.

Converting Your ITSX File for 3D Printing

Software used to prepare a 3D model file for printing, which is also known as 3D slicer software, cannot usually open ITSX files. This is because slicer software authors will support the most common formats used for 3D printing, such as STL and 3MF and do not have the resources to implement 3D object parsers for all the possible 3D formats that are out there.

A retro-themed laptop initial design

A retro-themed laptop initial design

The retro-themed laptop saved to the 3MF format

The retro-themed laptop saved to the 3MF format

The fully-assembled 3D printed laptop

The fully-assembled 3D printed laptop

Slicer software can, however, handle files formatted to the 3MF standard. This is because the 3MF format was specifically designed as a medium of storage and exchange for 3D printable models. Our ITSX to 3MF conversion tool can convert your ITSX file into a 3MF file suitable for loading into most 3D slicer software. As 3MF files support material colors and textures, our converter will convert these if present, resulting in a single 3MF file suitable for use with most 3D slicer software.

Frequently Asked Questions

How does ImageToStl.com differ from other ITSX file conversion websites?

Many 3D file conversion websites use the same off-the-shelf components to convert files, these often lack features and full ITSX file compatibility. Our bespoke file conversion tools offer full ITSX file compatibility and have been developed in-house by a team of developers, some of whom have over 30 years of experience working with 3D graphics file formats, meaning our tools will convert your ITSX file quickly and accurately with maximum compatibility.

I have several ITSX files; can I batch convert my ITSX to 3MF?

Yes! Our ITSX tool supports full batch conversions. You can upload up to 200 ITSX files at a time. Our tool will convert them all as quickly as possible. Once completed, you can either download the 3MF files individually or download them all in a single ZIP file.

How can I convert my ITSX file to 3MF?

First click the "Upload..." button, and select your ITSX file to upload. You can also drag and drop your file onto the tool. Once your file is selected, you can set any configuration options. When the ITSX to 3MF conversion has completed, you can download your 3MF file straight away.

How long does it take to convert my ITSX to 3MF?

We aim to process all ITSX to 3MF conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.

How accurate is the ITSX to 3MF conversion?

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.

Is it safe to convert my ITSX to 3MF on ImageToStl.com?

Yes, of course! We do not store the ITSX file you submit to us. The resulting 3MF file, once created, is stored for 4 hours after upload; after this time it is deleted, and the short-term download link will stop working. You can create a long-term download Url with most tools that will ensure the file is retained for 24 hours, allowing you to download the file when convenient. Our tools also come with a Delete button, allowing you to delete the file immediately.

Do I need a high-spec. computer to use the ITSX to 3MF converter?

No. All our conversion tools process your ITSX 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 3MF file quickly.

Can I convert my ITSX to 3MF on Windows, Linux, Android, iOS or Mac OS?

Yes! Our ITSX to 3MF tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.

What if I am using an Ad Blocker, will that affect things?

Yes. Although you can use an Ad Blocker, if you like our ITSX conversion tool please consider white-listing our website. When an Ad Blocker is enabled there are some conversion limits and some settings may not be available when using our tools. Processing/conversion and download times will also be longer.

Can I get support with converting my ITSX to 3MF?

Yes. When you have converted your ITSX to 3MF, there is a "Feedback" option that you can use to let us know of any issues you encountered when converting your file.

© 2026 ImageToStl. Convert your PNG and JPG Files to 3D STL files.