Our free and fast tool will convert most 3D mesh or OBJ (Wavefront) model files to a standard ASE (Ascii Scene Export) file that can then be edited further in most popular 3D editing packages such as Blender or 3D printed without any further processing. Our conversion tool can also batch convert multiple OBJ files; up to 25 files at a time can be converted.
To convert your OBJ file, click the Upload button above and select the file to convert. Once selected, the file will be converted to a ASE file and will be ready for download shortly afterwards. For more information about the OBJ to ASE conversion process, see the conversion information section below.
First click the "Upload..." button, select your OBJ file to upload. Select any configuration options. When the OBJ to ASE conversion has completed, you can download your ASE file straight away.
We aim to process all OBJ to ASE 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 OBJ file you submit to us. The resulting ASE file, once created is deleted 15 minutes after upload and the download link will expire after this time.
Yes! Our OBJ to ASE 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 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.
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.
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 ASE files individually or download them all in a single ZIP file.
| 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.
If your OBJ file is uploaded with accompanying MTL and texture files, these will be applied to the conversion process.
| Extension | ASE |
| Full Name | Ascii Scene Export |
| Type | 3D Model |
| Mime Type | text/plain |
| Format | Text |
| Tools | ASE Converters, 3D Model Voxelizer, Create ASE Animation, Text to ASE, ASE Viewer |
The ASE format (Ascii Scene Export) is a plain text file format used to represent a full 3D scene. The 3ds Max software is the main supporter of ASE as an export format, though there is support within other applications such as Blender for ASE files.
An ASE file will contain 3D geometry data such as vertices, faces, normals, and other data. As the data is stored in human-readable text format, the files lend themselves to being easy to parse; however, they can become quite large when used with complex 3D scenes.
Converting from the OBJ file format to ASE 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 ASE 3D model. Let's start with the conversion process, which involves the following steps:
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 ASE 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 ASE 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.
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 ASE 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 ASE format.
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