Convert OBJ to AMF for free

How to Convert your OBJ to AMF Online?

Here are two simple steps to convert your OBJ to AMF.

Upload a OBJ

Click the "Upload a OBJ File" button and select a OBJ to upload. The maximum file size is 100MB.

Download your AMF

Click the download link once completed to receive your AMF file.

File Format Information for OBJ to AMF

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

Description

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.

OBJ Notes

If your OBJ file is uploaded with accompanying MTL and texture files, these will be applied to the conversion process.

Supported Features

Mesh geometry
Materials (Via an MTL file)
Textures (PNG, JPG, TGA formats)

Extension	AMF
Full Name	Additive Manufacturing File
Type	3D Model
Mime Type	text/xml
Format	Text
Tools	AMF Converters, 3D Model Voxelizer, Create AMF Animation, Compress AMF, AMF Asset Extractor, Text to AMF, AMF Viewer

Description

The AMF, or additive manufacturing file format, is an open standard 3D file format primarily used within additive manufacturing processes such as 3D printing. The initial release version of the file was in 2011, and the format continues to be developed today.

As this is a 3D file format, the contents, which are XML-based, describe one or many 3D objects broken down into solid volumes defined with vertices and triangles. The format has support for color and texture materials.

Comparing OBJ and AMF Features

OBJ 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

AMF 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 OBJ file format to AMF 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 OBJ file to a valid AMF 3D model. Let's start with the conversion process, which involves the following steps:

Step 1: Read the Source OBJ File

In its simplest form, an OBJ 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.

When our tool reads this 3D data, all we are interested in are the vertices, faces, and normals, as this is the only data that can be accurately converted into the final AMF file.

The OBJ file can contain other data, such as material definitions and textures, that describe how a particular set of 3D geometry should be rendered. As we are creating an AMF file, which does not support materials and textures, we will be ignoring this data if it is present in the OBJ file.

For more information regarding the OBJ file format, please see this great article that goes into a lot of detail explaining the OBJ format.

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Step 2: Process File Data

With the OBJ 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 AMF format.

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Step 3: Saving to the AMF Format

With the conversion process entering its final stages, our tool now needs to take the in-memory 3D model we have created in step 2 and convert it to the AMF format.

Frequently Asked Questions

My OBJ file contains materials and textures; how do I upload these?

If your OBJ file has separate material (MTL) and texture (PNG, JPG, etc.) files, you can drag and drop these onto the upload tool along with the main OBJ file. Our tool will intelligently detect which of these additional files belongs to the OBJ file. Alternatively, you can place these additional files, along with the OBJ file, within a ZIP or other compressed archive file and upload that.

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

Many 3D file conversion websites use the same off-the-shelf components to convert files, these often lack features and full OBJ file compatibility. Our bespoke file conversion tools offer full OBJ 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 OBJ file quickly and accurately with maximum compatibility.

I have several OBJ files; can I batch convert my OBJ to AMF?

Yes! Our OBJ tool supports full batch conversions. You can upload up to 25 and OBJ files at a time. Our tool will convert them all as quickly as possible. Once completed, you can either download the AMF files individually or download them all in a single ZIP file.

How can I convert my OBJ file to AMF?

First click the "Upload..." button, select your OBJ file to upload. Select any configuration options. When the OBJ to AMF conversion has completed, you can download your AMF file straight away.

How long does it take to convert my OBJ to AMF?

We aim to process all OBJ to AMF 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 OBJ to AMF 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 OBJ to AMF on ImageToStl.com?

Yes, of course! We do not store the OBJ file you submit to us. The resulting AMF file, once created is deleted 20 minutes after upload and the download link will expire after this time.

Do I need a high-spec. computer to use the OBJ to AMF converter?

No. All our conversion tools process your OBJ 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 AMF file quickly.

Can I convert my OBJ to AMF on Windows, Linux, Android, iOS or Mac OS?

Yes! Our OBJ to AMF 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 OBJ 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.

Can I get support with converting my OBJ to AMF?

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