.stl
Open STL on Phone
Preview STL 3D model files locally on iPhone or Android.
Local preview supported
OpenOnPhone can preview this format locally in your browser today.
Choose fileWhat is STL?
STL is a 3D model format commonly used for 3D printing and mesh exchange.
Common MIME examples: model/stl, application/sla
Why it can be hard on phone
- 3D rendering can be heavy for mobile browsers.
- Large meshes can slow down or crash simple viewers.
- STL does not include materials or units in a reliable way.
What to try next
- Choose the STL file on the home page.
- OpenOnPhone renders the model locally with rotate, pan, and zoom.
- Use a dedicated slicer when you need units, print settings, or repair tools.