STLViewer.online
The Fastest Way to Preview and Share 3D Models
STLViewer.online launched on May 20, 2026.
What it does
View and share your STL & 3MF models in the browser with ease. Everything is secure and runs client-side, nothing leaves your device without your say. No installs, no account required. Drop in a file and get a shareable link in seconds: • Measure distances directly in the model • Swap materials and colors • Extract models from 3MF files • PNG snapshots and QR codes • Embed the viewer anywhere Fast, private, and completely free.
Use our free STL viewer online to open, read, and share 3D models with a single link. No installation required. Fast, private, and secure STL reader.
Open any STL, 3MF, or PLY file in your browser with WebGL rendering. No installation, no account needed. After upload, get a shareable link instantly. Anyone with the link can view your model in seconds. Share links aren't indexed by search engines — your models are only visible to people you send them to. Set an expiration time and files are deleted automatically when the timer runs out. Renders binary and ASCII STL files, full 3MF support, and mesh PLY — no cloud processing for anonymous uploads. Measure distances directly on the mesh, swap material presets, and export screenshots. Supported formats: STL , 3MF , PLY . Up to 20.0 MB per file, 50.0 MB total. STLViewer is a free,…from stlviewer.online
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