GeometryViewer

GeometryViewer is a free browser-based 3D model viewer. Open, view, and share STL, OBJ, GLB, GLTF, and 3MF files instantly — no download, no install required.

Looking for a Windows 3D Viewer alternative? Microsoft deprecated its built-in 3D Viewer app in July 2026. GeometryViewer runs in any browser on Windows, Mac, Linux, iOS, and Android — just drag and drop your STL, OBJ, GLB, or 3MF file and it opens instantly. No software to install, no account needed.

Popular with 3D printing enthusiasts, Bambu Lab users, Prusa owners, Shopify developers, architects, and educators. Embed a live 3D viewer in any website with one line of HTML. Share models via link with full augmented reality (AR) preview on mobile. Works as a free online STL viewer, OBJ viewer, and GLTF viewer.

Visit: https://geometryviewer.com

Features

View 3D models in browser — no install needed
Share models with a permanent link
AR mode on mobile — place models in the real world
Embed with one line of HTML
Export GIF animations, MP4 videos, or image sets
Free to use — no account required
Works on desktop, tablet, and mobile
Upload files up to 100MB
oEmbed support — models auto-embed in Notion, Ghost, Medium

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