3D Model Viewer
Upload any STL file to inspect your part in 3D — directly in the browser. Files are processed locally and never uploaded to our servers.
Supported Formats
STLBinary and ASCII STL
Max file size: 50 MB. For very large files, simplify mesh in your CAD software before uploading.
Don't have an STL?
Download a free sample STL from Thingiverse or export one from any CAD package to try the viewer.
CAD Export Tips
SolidWorks
- 1.File → Save As → "STL (*.stl)"
- 2.Click Options → set Resolution to Fine
- 3.Set units to Millimetres
- 4.Uncheck "Do not translate STL output data to positive space" for correct origin
Fusion 360
- 1.File → Export → STL
- 2.Structure: "One File Per Body"
- 3.Set Refinement to High
- 4.Ensure units are set to mm in Document Settings
FreeCAD
- 1.Select the solid body in the model tree
- 2.File → Export → select STL Mesh
- 3.Max deviation: 0.01 mm, Angular deviation: 0.5°
- 4.Millimetres assumed — verify in Preferences
Your IP stays private
STL files are loaded and rendered entirely in your browser using WebGL. Nothing is sent to our servers.