GeometryViewer icon
GeometryViewer icon

GeometryViewer

Free browser-based 3D file viewer. No install, no signup. Opens STL, OBJ, GLB, GLTF, 3MF and FBX files. Share models with a permanent link or embed in any website.

ModelDirectory homepage showing 275,000+ free 3D models searchable by format, category, and platform.

Cost / License

  • Free
  • Proprietary

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Platforms

  • Online
  • Android
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Photos & Graphics, System & Hardware

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GeometryViewer was added to AlternativeTo by Josh Green on and this page was last updated .

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What is GeometryViewer?

GeometryViewer is a free, browser-based 3D file viewer that requires no installation or signup. Open and inspect STL, OBJ, GLB, GLTF, 3MF, and FBX files directly in your browser on any device — desktop, tablet, or mobile.

Built as a modern replacement for Microsoft's discontinued Windows 3D Viewer (removed July 2026), GeometryViewer works entirely online with no plugins required. Upload a file or paste a URL to instantly view any 3D model with smooth WebGL rendering.

Key features include permanent shareable links for any uploaded model, an embeddable web component (a single HTML tag adds an interactive 3D viewer to any website), GIF and MP4 turntable export, and augmented reality preview on mobile via WebXR. Compatible with files from Bambu Lab, Prusa, Creality, and all major FDM printers — making it the go-to viewer for the 3D printing and maker community.