Convert STL file


STL (STereoLithography) is a file format developed by 3D Systems company, the world leader in 3D printing industry. STL files contain triangular mesh only, without face color, texture, transparency and named groups data. While it is possible to assign RGB color value for each individual vertex, Autoconverter our STL file converter doesn't support this STL file extension. You can save STL file in binary a or ASCII text file format, with the preference for the former one due to significant STL file size reduction.


OBJ (Alias Wavefront Object) is a text based file format for 3D geometry objects which is very popular and widely supported by many 3D software programs. OBJ file format is capable to store named group objects, surface materials with transparent colors or texture images, and quads or triangles as geometry primitives. However our Autoconverter software will simplify every OBJ quad primitive with two triangles as only triangular facets are supported during the files conversion. It's important to mention that due to a textual format OBJ files will be always significantly bigger than the binary files e.g. 3DS (3D Studio) or SKP (SketchUp).