How to convert OFF to STL
- Add your .OFF file - drop it in the box above or click to browse.
- Convert it to .STL in a few seconds.
- Download your new .STL file.
What to expect
- All faces become triangles; color and other non-geometry data are not kept.
- STL encodes no units, so scale must be set in the slicer or viewer.
- Only surface geometry transfers; a mesh with holes or non-manifold edges may need repair before printing.
Frequently asked questions
How faithful is the STL result?
STL stores only triangles, so any non-triangular faces in the OFF are triangulated, but the surface shape is preserved.Why convert OFF to STL?
STL is the standard input for 3D-printing slicers, so converting prepares the mesh for printing. It is also widely accepted by 3D viewers.
Where does the STL open?
STL opens in 3D viewers and in every slicer, such as Cura or PrusaSlicer.What is not kept?
Standard STL stores geometry only - no color and no units - so OFF per-vertex colors are dropped. The mesh should be watertight and manifold to print correctly.
Programs that convert OFF: IVCon · meshconv · Autoconverter · Afanche 3D Viewer for Mac · Online 3D Model Converter
