Convert STL to GLTF File

STL to GLTF ......

Enclosed is a comprehensive list of resources related to the interoperability and exchange between STL and GLTF files. These resources will prove invaluable in facilitating the conversion from STL to GLTF file.


The STL (STereoLithography) file format, developed by 3D Systems, a global leader in the 3D printing industry, exclusively contains triangular mesh data. It does not include information on face color, texture, transparency, and named groups. Although it is possible to assign RGB color values to individual vertices, it’s important to note that our STL file converter, Autoconverter software, currently does not support this extension. STL files can be saved in either binary or ASCII text formats, with the binary format being preferred due to its significant reduction in file size. Additionally, it’s worth noting that triangles in STL files are always defined in millimeters, and our STL converter will perform the necessary units conversion if required.


GLTF (Graphics Language Transmission Format) is a file format developed and maintained by the Khronos Group organization. There are currently two versions of the GLTF file format available: the original 1.0 and the more recent 2.0, with the latter being preferred due to its newer features. By default, a GLTF file is saved in ASCII text mode. However, to save a GLTF file with all referenced texture images in binary mode, the GLB file extension should be used. Our GLTF and GLB conversion tools, Autoconverter and Automesher Application, offer full support for importing and exporting both GLTF and GLB files, thanks to the open asset import library.