Free Online 3MF to OBJ Converter

You can use our 3MF to OBJ conversion tool to quickly and easily convert your 3D model files for free. You may upload up to 20 files at one time, and our batch 3MF to OBJ converter will process each 3D model and present you with a download link for each file once completed.

Select File(s)

Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.

Please note: Your 3MF file, once uploaded to our server, will be deleted 15 minutes after upload, so please download your converted 3MF file before this time.

Our 3D model 3MF to OBJ tool will load your 3MF file and, where supported, attempt to extract all the relevant 3D features, such as geometry, textures, and animations. To access the 3D conversion configuration options, click the button when you have selected your files. The current options support the ability to voxelize your 3D model and more.

How to Convert your 3MF to OBJ Online?

Here are two simple steps to convert your 3MF to OBJ using our fast and free 3MF converter tool.

Upload your 3MF file

Click the "Upload a 3MF File" button, then select a 3MF to upload. The maximum file size is 100MB.

Download your OBJ

Click the download link to receive your OBJ file.

Frequently Asked Questions

How can I convert my 3MF file to OBJ?

First, click the "Upload..." button and select your 3MF file to upload. Your 3MF file will be uploaded to our servers. When the 3MF to OBJ conversion has completed, you can download your OBJ file right away.

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

We aim to process all 3MF to OBJ conversions as quickly as possible; this usually takes around 5 seconds; however, this can be longer for certain files, so please be patient.

How accurate is the 3MF to OBJ conversion?

We aim to provide the best conversion experience. Our tools are under constant review and development, with new features being added every week.

How does converting 3MF to OBJ work?

In order to successfully convert an 3MF formatted file to the OBJ format, our converter tools will perform several initial checks to ensure the file provided is indeed an 3MF file. There are many files out there where the file type extension does not match the data contained within the file. Along with these file type checks, our tools will do additional checks to ensure the file is correctly formatted to match the provided file type. There are many tools out there that do not always create 3MF files to the exact specification.

Take your 3MF file

An 3MF file is a binary data file containing 3D data that makes up the 3D model, including vertices, faces, texture coordinates, and more. To guarantee efficient conversions, our tool will check all data that is contained within the 3MF file and remove any information that is duplicated. This not only ensures the conversion completes more quickly, but also the generated OBJ file size is smaller.

Along with the core data that makes up the 3D model, our tool will check the 3MF file for the presence of texture coordinates to ensure any texture-based materials are converted correctly. Even if the texture files are not presented with the 3MF file, our converter will preserve any texture coordinates when converting to the OBJ format.

Convert the data from 3MF to OBJ

Now that the data from the 3MF file has been processed, our tool can apply any conversion specified options, such as enabling Voxel mode, and with these applied, prepare the data to be converted to the final OBJ file format. Part of this process ensures checking the capabilities of the OBJ format and removing any data that cannot be represented.

Save to the OBJ format

At this point, the 3MF to OBJ conversion tool will have the 3D model in a state that is ready to be transferred to the OBJ format. Our tool creates the OBJ file, ensuring all the model data is present and is formatted to match the OBJ file specification to ensure the file opens in compatible OBJ file editors.

If the 3MF file contains texture images, these will be exported to a format that is compatible with the OBJ format. For most textures that are stored as JPG or PNG images, these are transferred with no changes. However, if there are other formats, such as TGA, these will be converted to a suitable format.

If an 3MF texture does need to be converted to a different image file format, our tool will ensure the quality and resolution are not degraded during the conversion process.

File format information for 3MF and OBJ

Extension	3MF
Full Name	3D Manufacturing Format
Type	3D Model
Mime Type	application/vnd.ms-package.3dmanufacturing-3dmodel+xml
Format	Binary

The 3MF file format was created as a standard storage medium for 3D models for use within the area of 3D printing. A 3MF file will contain 3D model data stored within an XML-formatted document with additional assets such as image previews and material data. These files are wrapped up within a compressed ZIP file (using the 3MF extension).

The 3MF format was created in response to the constraints of the STL format, which is the most popular format for storing 3D printable models. Unlike the STL format, which can only store triangular information, the 3MF format can store mesh geometry along with material, units of measurement, and other relevant 3D printing information that is impossible to store within an STL file.

Storing the 3D data within a ZIP file container ensures the file size is kept to a minimum while making it easily extendable in the future. 3MF files are widely supported by 3D printing slicer software and are a common export option within 3D editing software.

3MF Converter Capabilities

When converting 3D model or mesh files using our 3MF converter, we will attempt to convert colour materials into a suitable format for use in the converted file.

Extension	OBJ
Full Name	Wavefront
Type	3D Model
Mime Type	text/plain
Format	Text
Opens With	MeshLab, CAD Assistant, DAZ Studio

The OBJ file format is a 3D graphics file format used to define complex 3D models, including geometry, materials, and textures. OBJ files are text files, making them human-readable and easy to modify by hand. The downside to this ease of readability is that the files can become rather large when dealing with large or complex 3D models.

As mentioned, the OBJ format stores not only 3D model geometry but also materials and textures. These materials are usually defined in a separate file with the MTL file extension and specify geometry rendering details such as diffuse and specular colour, transparency, and much more.

The OBJ material file can also reference external texture files. These are usually JPEG or PNG files; however, these can be older formats, such as TGA. Where materials are used, the OBJ file will also contain material names preceding the geometry faces they should be applied to. If textures are referenced, the geometry will also contain texture coordinates (UV) for each vertex.

OBJ Converter Capabilities

When converting your 3MF to OBJ, our tool will attempt to accurately convert any colour or material information.

Information for converting from 3MF to OBJ

Your 3MF file will be converted to a OBJ file using our unified 3D model and mesh conversion tool. Our 3MF 3D tool performs accurate conversions of 3D elements such as vertices, faces, normals, and relevant material information. As both 3MF and OBJ support colour material information, our tool will also attempt to convert the colour information.