3D Lab Viewer — view and share 3D models in your browser

Free online 3D model viewer for STL, OBJ, STEP, 3MF and GLB files. Drag in a model to orbit and inspect it, measure distances, take cross-sections, and export to other formats. Models you open are parsed locally in your browser — nothing is uploaded unless you choose to share a link.

• Supported formats: STL, OBJ, STEP / STP, 3MF, GLB
• Measure distances and read exact dimensions
• Cross-section and clipping planes
• Export to STL, OBJ, GLB or 3MF
• Share a model with a private link
• Also available as a free Windows desktop app