You can use our X to STL conversion tool to quickly convert your 3D model (with optional texture files) for free. You may upload up to 20 files at one time, and our batch X to STL converter will process each 3D model and present you with a download link for each file once completed.
Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.
Our 3D model X to STL tool will load your X file and, where supported, attempt to extract all the relevant 3D features, such as geometry, textures, and animations. To access the 3D conversion configuration options, click the button when you have selected your files. The current options support the ability to voxelize your 3D model and more.
Here are two simple steps to convert your X to STL using our fast and free X converter tool.
First, click the "Upload..." button and select your X file to upload. Your X file will be uploaded to our servers. When the X to STL conversion has completed, you can download your STL file right away.
We aim to process all X to STL conversions as quickly as possible; this usually takes around 5 seconds; however, this can be longer for certain files, so please be patient.
We aim to provide the best conversion experience. Our tools are under constant review and development, with new features being added every week.
Extension | X |
Full Name | Direct X File |
Type | 3D Model |
Mime Type | text/plain |
Format | Text |
The X file format is the legacy format used by the Microsoft Direct X suite of components and tools. Specifically, X files are used to store hierarchical 3D objects along with their associated material, texture, lighting, and animation data.
The 3D data is stored as plain text in the X file, allowing for manual editing within a simple text editor. 3D mesh surfaces are defined using a series of vertex coordinates and joined with lists of face indices. Along with these are optional normal and texture coordinates for textured surfaces; the textures themselves are often stored as external files using the DDS file format.
As mentioned previously, the X format is a legacy format and is no longer widely supported, with developers preferring to use modern formats such as FBX instead. That said, some 3D modeling applications still support importing and exporting to the X format.
X Converter Capabilities
When converting 3D model or mesh files using our X converter, we will attempt to convert color materials into a suitable format for use in the converted file.
Extension | STL |
Full Name | Standard Triangle Language |
Type | 3D Model |
Mime Type | application/vnd.ms-pki.stl |
Format | Text |
Opens With | Blender, MeshLab, CAD Assistant, DAZ Studio |
The STL, or Standard Triangle Language, file format has been around since the '80s and is supported by most modern 3D modeling applications. In particular, the STL format has become something of a standard format within the area of 3D printing, despite the rise of more modern formats such as 3MF.
STL files come in two flavors: binary or text format. The text format is human-readable, making it easy to perform manual edits, but can lead to very large file sizes. As you can imagine, the binary format is much more compact and represents the majority of the STL files you are likely to encounter.
The format itself is very simple; the 3D model is represented by a sequential list of triangles, with each triangle defined with 3 points consisting of their X, Y, and Z positions, along with an additional vector that contains the face normal (the direction the face is pointing). There is an additional attribute block for each triangle; however, this is largely unused and thus unsupported.
STL Converter Capabilities
When converting your X to STL, our tool will attempt to accurately convert any color or material information.
Your X file will be converted to a STL file using our unified 3D model and mesh conversion tool. Our X 3D tool performs accurate conversions of 3D elements such as vertices, faces, normals, and relevant material information. As both X and STL support color material information, our tool will also attempt to convert the color information.