Skip to contentSTL stores triangular surface meshes for 3D printing and CAD — ASCII or binary encoding of vertices and normals.
STL (stereolithography) files list triangles that approximate a 3D surface — no color or texture, just geometry. 3D printers and slicers consume STL/OBJ meshes.
Binary STL is compact; ASCII STL is human-readable but large. Tentaco 3D CAD Studio previews STL/OBJ in the browser and reports mesh stats (triangle count, bounding box) before you send files to a slicer.
