GeometryViewer - 3D&AR Viewer

GeometryViewer is a free 3D and AR model viewer. Open STL, OBJ, GLTF, GLB, and 3MF files directly from your device — no account, no upload required.

Drop any 3D file to view it instantly in 3D. Then place it in your real environment using augmented reality with WebXR.

Features:
• Opens STL, OBJ, GLTF, GLB, and 3MF files
• Augmented reality — place models on real surfaces
• No file size limits
• No account or sign-up
• Works completely offline after first load
• Free, forever

Used by engineers, 3D printing enthusiasts, designers, and educators worldwide.