The STL (Stereolithography) file format is the standard for 3D printing and rapid prototyping. Our Free Online STL Viewer allows you to open and inspect these files instantly without needing to install CAD software or slicers.
Why Use an Online STL Viewer?
- Quick Inspection: rapidly check if your 3D model is watertight and ready for printing.
- No Installation: Don't wait for heavy software like Blender or Fusion 360 to load just to view a file.
- Shareable: Easily show your designs to clients or friends by opening them on any device.
Features
- Full 3D Controls: Orbit, pan, and zoom to examine your model from every angle.
- Wireframe Mode: Toggle wireframe view to inspect the mesh structure.
- Model Statistics: View vertex and face counts to gauge model complexity.
- Secure: Your STL files are processed locally in your browser and are never stored on our servers.
How to Open an STL File
- Upload: Click "Upload" or drag and drop your
.stlfile into the viewer. - View: The model will load instantly in the 3D viewport.
- Interact: Use your mouse (left click to rotate, right click to pan, scroll to zoom) to inspect the model.