STL Viewer: 3D Model

STL Viewer opens the model the moment you tap the file — from Drive, a browser download, an email or any file app. Drag to turn it, pinch to zoom, done.

OPENS FROM ANYWHERE

Tap a .stl and pick STL Viewer. No importing, no account, no cloud upload. The file never leaves your phone.

SEE THE WHOLE PART

• ASCII and binary STL

• Smooth turning even on models with hundreds of thousands of triangles

• Six preset views — front, back, top, bottom, left, right

• Wireframe toggle

• Dark background by default, easy on the eyes

KNOW WHAT YOU ARE LOOKING AT

• Bounding-box dimensions in millimetres or inches

• Triangle and vertex count

• Volume and surface area

• Watertight check before you send it to the printer

NO PERMISSIONS

Reads only the file you opened. Nothing else on your phone is touched.

Remove ads with a one-time purchase, or unlock unlimited snapshot sharing, an unlimited recent-files list, and custom background and material colours.

Pro: no ads, unlimited use, all features unlocked. One-time purchase.