Free Online U3D Converter

This is our fast and free file converter, specializing in converting your U3D 3D model files. You can convert your U3D files to a number of different formats, whether that be another 3D model format or an image. Our U3D converter can handle the most popular formats. Our U3D converter can also batch process up to 20 files at a time.

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 U3D file, once uploaded to our server, will be deleted 15 minutes after upload, so please download your converted U3D file before this time.
Our U3D converter tool supports converting to the following file types: 3MF, ABC, AMF, ASE, BLEND, CTM, DAE, FBX, GLB, GLTF, IDTF, KMZ, OBJ, OFF, PCD, PLY, SKP, STEP, STL, STP, STPZ, USD, VTK, VTP, WRL, X, X-Plane, X3D, XYZ, ZIP

To start, please click the button above and select the 3D model U3D files you wish to convert. Once you have selected these, you can specify what you would like each file to be converted to. This could be another 3D model format, or another format from our extensive list. Once the target formats have been set, you can apply any configurations (such as applying the built-in voxelizer) by clicking the button.

How to Convert your U3D file Online?

Here are 3 simple steps to convert your U3D file using our fast and free U3D file converter tool.

Upload your U3D file

Click the "Select File(s)" button, then select an U3D file to upload. The maximum file size is 100MB.

Select file type

Select the file type to convert your U3D file to using the drop-down list of available types.

Download your file

Click the download link to receive your converted file.

Frequently Asked Questions

Is it free to use the U3D conversion tools?

Yes! Our U3D conversion tools are 100% free to use.

Are there any U3D conversion usage limits?

No, you can convert as many files as you wish. We do not impose any conversion limits on our U3D conversion tools.

How long does it take to convert my U3D?

We aim to process all U3D conversions as quickly as possible; this usually takes around 5 seconds; however, this can be longer for certain files and significantly longer for some larger file formats, so please be patient.

What does the U3D conversion process involve?

Once your U3D file has been uploaded and we know the file format you wish to convert it to, our bespoke conversion software will convert your U3D and make it available for you to download with a unique download URL.

Is it safe to convert my U3D on FabConvert.com?

Yes, of course it is! Your U3D, once converted, is retained for 1 hour after upload and is then deleted, and the download link will expire after this time.

Can I convert my U3D on Linux, Android, iOS or Mac OS?

Yes! Our U3D conversion tools will run on any system with a modern web browser.

Is there any support for me when using the U3D tool?

If you are having difficulty converting your U3D, you can contact us, and we will try to help where possible.

U3D file format information

Extension	U3D
Full Name	Universal 3D
Type	3D Model
Mime Type	model/u3d
Format	Binary

U3D files are a 3D model format designed specifically for use in conjunction with PDF documents. The U3D format stores 3D model data in a manner that allows the file to then be embedded within a PDF document, enabling rich 3D content within a standard PDF.

Within a U3D file are the various data elements that make up the 3D model, including vertices, faces, normals, and texture coordinates. Along with this basic geometry, the face materials are also stored, which describe how the 3D object's surface should be rendered.

Support for exporting 3D content to the U3D format can be found in some 3D modeling software; in particular, the popular modeling software Daz Studio contains a U3D exporter.

U3D Converter Capabilities

Currently, our U3D converter can only convert from U3D files, our developers are working to allow converting to U3D files in future versions of our tools. Our U3D 3D Model/Mesh tool does not support any color material data contained within U3D files, so the converted file will not contain any color information.