Our free and fast tool will convert most 3D mesh or STP (STEP-File) model files to a standard X3D (Extensible 3D Graphics) 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 STP files; up to 25 files at a time can be converted.
To convert your STP file, click the Upload button above and select the file to convert. Once selected, the file will be converted to a X3D file and will be ready for download shortly afterwards. For more information about the STP to X3D conversion process, see the conversion information section below.
| Extension | STP |
| Full Name | STEP-File |
| Type | 3D Model |
| Mime Type | application/octet-stream |
| Format | Text |
| Tools | STP Converters, 3D Model Voxelizer, Create STP Animation, Text to STP, STP Viewer |
| Open With | CAD Assistant |
The STP file format, which can also be found with the extension STEP, is a 3D format defined in 1994 and used to store 3D objects for use in computer-aided design (CAD) applications. STP files are text-based, formatted files containing one instance per line.
Although STP files are widely supported by most CAD applications, the format does have its limitations, such as the necessity to read the complete file into memory in order to parse the contents, and due to the textual storage of information, the files can be quite large.
X3D files, when imported, will be converted to 3D geometry comprising vertices and faces. If the X3D file contains color information, this will be converted where possible.
| Extension | X3D |
| Full Name | Extensible 3D Graphics |
| Type | 3D Model |
| Mime Type | model/x3d+xml |
| Format | Text |
| Tools | X3D Converters, 3D Model Voxelizer, Create X3D Animation, Compress X3D, X3D Asset Extractor, Text to X3D, X3D Viewer |
| Open With | Blender, MeshLab |
The X3D file format was introduced in 2002 as a successor to the 3D VRML (WRL) file format. X3D files contain 3D mesh and model information defined using vertices, faces, normals, and material data, making them broadly as capable as the older VRML format.
X3D files are structured XML text-based files that allow full 3D scenes to contain models comprised of 3D mesh data and other simple shapes. There are browser extensions that allow X3D files to be directly embedded within HTML to allow rendering directly to a web page; however, the format has not seen widespread adoption.
X3D files support material and color information. If your uploaded model contains color information, our tool will attempt to save this in the X3D file at the end of the conversion process. Texture information is not supported at this time.
Converting from the STP file format to X3D 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 STP file to a valid X3D 3D model. Let's start with the conversion process, which involves the following steps:
In its simplest form, a STP file is a human readable text file file containing 3D data such as shapes, surfaces, curves and other geometric data. When combined, these make up the 3D model you see on your screen.
For more information regarding the STP file format, please see this great article that goes into a lot of detail explaining the STP format.
With the STP 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 X3D 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 X3D format.
Yes. If your STP file is compressed, our tool will detect this automatically and load the 3D model from the STP file as normal.
Our STP to X3D file converter is up to 4x faster than other online or offline file converters, meaning your files are converted quickly and hassle-free. Smaller files are typically converted instantly, while larger files will take longer to process.
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 STP file you submit to us. The resulting X3D file, once created is deleted 15 minutes after upload and the download link will expire after this time.
No. All our conversion tools process your STP 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 X3D file quickly.
Yes! Our STP to X3D 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 STP 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.
Yes. When you have converted your STP to X3D, 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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