Our free and fast tool will convert your 3D 3MA (3D Modeling App: Sculpt & Draw) model files to a standard OBJ (Wavefront) 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 3MA files; up to 200 files at a time can be converted.
To convert your 3MA 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 3MA to OBJ conversion process, see the conversion information section below.
| Extension | 3MA |
| Full Name | 3D Modeling App: Sculpt & Draw |
| Type | 3D Model |
| Mime Type | application/json |
| Format | Text |
| Tools | 3MA Converters, 3D Model Voxelizer, Create 3MA Animation, 3MA Viewer |
A 3MA file is the native file format of the popular 3D modelling app: sculpt & draw and contains 3D geometry and texture information used by the app.
The contents of the file itself contains JSON data capturing the geometry vertices, normals, texture coordinates and more. These files can be opened and edited with the 3D modelling app.
| 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 3MA 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 3MA file to a valid OBJ 3D model. Let's start with the conversion process, which involves the following steps:
In its simplest form, an 3MA 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, normals, materials, and textures, as this is the only data that can be accurately converted into the final OBJ file.
The 3MA file can contain data such as material definitions and textures that describe how a particular set of 3D geometry should be rendered. As we are creating an OBJ file, which supports both materials and textures, our tool will attempt to load any materials and textures present in the 3MA file.
For more information regarding the 3MA file format, please see this great article that goes into a lot of detail explaining the 3MA format.
With the 3MA 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.
Along with the completed OBJ file, a separate MTL file will also be created, along with any textures that were present in the original 3MA file. Depending on the original texture format, these textures will be saved in either PNG or JPG format. If the original format was neither of these, for example, if your model contained a texture in the TIF format, it will be converted to a PNG.
Yes! If your 3MA file contains textured geometry, the texture image files along with the texture coordinates (UV data) will be exported with the final OBJ file.
Yes! Our 3MA tool supports full batch conversions. You can upload up to 200 3MA files at a time. Our tool will convert them all as quickly as possible. Once completed, you can either download the OBJ files individually or download them all in a single ZIP file.
First click the "Upload..." button, and select your 3MA 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 3MA to OBJ conversion has completed, you can download your OBJ file straight away.
We aim to process all 3MA 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 3MA file you submit to us. The resulting OBJ 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.
No. All our conversion tools process your 3MA 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 3MA 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 3MA 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.
Yes. When you have converted your 3MA 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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