3D Object Observer

Open a folder or ZIP with STL files to preview, inspect, and adjust models — fully offline.

About

A lightweight offline tool for loading and inspecting 3D STL models directly from your local file system.

Built by Dr. Zhao in spare time out of personal interest. Not affiliated with any research institution, company, or organization. Unauthorized use is strictly prohibited. Intellectual property rights are sacrosanct and inviolable.

Disclaimer: This software provides STL file preview functionality only. It can be used to view medical models, game assets, and any other STL-format 3D files. The author assumes no responsibility for copyright issues related to the content viewed with this tool.

📂 Local folder 📦 ZIP support 🌐 Offline
Idle
Sensitivity 1
Drag to rotate  ·  Right-click to pan  ·  Scroll to zoom

Hand Gesture Control

This is an experimental feature and may be unstable. Use with caution.

How it works:
Peace sign — Start gesture session
OK sign (open) — Track hand
Pinch — Rotate model with hand movement
Release / hand gone 10s — End session

Your camera feed is processed locally — no data is sent anywhere.