You can use our GLTF to STL conversion tool to quickly and easily convert your 3D model files for free. You may upload up to 20 files at one time, and our batch GLTF 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 GLTF to STL tool will load your GLTF 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 GLTF to STL using our fast and free GLTF converter tool.
First, click the "Upload..." button and select your GLTF file to upload. Your GLTF file will be uploaded to our servers. When the GLTF to STL conversion has completed, you can download your STL file right away.
We aim to process all GLTF 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 | GLTF |
Full Name | Graphics Language Transmission Format |
Type | 3D Model |
Mime Type | model/gltf-binary |
Format | Binary |
GLTF files are the plain text JSON equivalent of the GLB 3D file format developed and maintained by the Khronos Group. GLTF files are designed to be an open and expandable 3D format that can store 3D graphics and their assets, such as textures, animations, and more.
The content of a GLTF file is stored as plain text using a JSON data structure, which enables efficient storage of 3D modeling data. Large and complex 3D scenes can lead to inflated file sizes; where this is an issue, it is recommended to switch to the binary GLB format to help reduce the file size.
Due to their open format, GLB files are widely supported by 3D editing software. The format has gained traction amongst videogame developers and other 3D artists as a primary means of exchanging 3D data between different applications.
GLTF Converter Capabilities
When converting 3D model or mesh files using our GLTF 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 GLTF to STL, our tool will attempt to accurately convert any color or material information.
Your GLTF file will be converted to a STL file using our unified 3D model and mesh conversion tool. Our GLTF 3D tool performs accurate conversions of 3D elements such as vertices, faces, normals, and relevant material information. As both GLTF and STL support color material information, our tool will also attempt to convert the color information.