Design & maps

STL to OBJ

Convert triangle geometry while preserving coordinate units and winding.

No accountLocal processingSingle-file
AcceptsSTL
CreatesOBJ
Limits1 file, 20 MiB per file, 30 seconds processing time.
Starting the converter…

Use stl to obj in your browser

Select the files you want to process, review the result, and download a copy. The output format is fixed for this tool so the direction stays clear.

STL to OBJ: what to expect

Convert triangle geometry while preserving coordinate units and winding.

  • Geometry only: materials, textures, animation, scenes and styling are not retained. Units are preserved as numbers and are never guessed.
  • Binary or ASCII STL, triangle-only OBJ and ASCII PLY 1.0. Up to 300,000 vertices and 100,000 triangles; invalid or degenerate geometry is refused.
  • STL output uses 32-bit coordinates, which may round higher-precision values.