3DSTLViewer

🚀 3DSTLViewer – STL & 3MF 3D Model Viewer for 3D Printing

3DSTLViewer is a fast and easy STL viewer and 3MF viewer designed for 3D printing makers. Open, view, and inspect your 3D models with smooth controls and a clean interface—anytime, anywhere.

Preview your files before printing, analyze mesh geometry, and explore your models in full 3D directly on your device.

🔥 KEY FEATURES

📂 Open STL & 3MF Files
View STL files (binary & ASCII)
Open 3MF files from local storage
Fast loading for 3D printing models

🎮 Full 3D Model Viewer Controls
Rotate models with one finger
Pan with two fingers
Pinch to zoom
Reset camera to fit model

Smooth and responsive 3D model viewer experience.

🔍 Inspect Model Details
Triangle count
File size
Dimensions and bounds
Mesh structure

Perfect for checking models before slicing or printing.

🧵 Wireframe Mode for Mesh Inspection
Switch between solid and wireframe view
Analyze edges, vertices, and geometry
Great for debugging STL models

⚡ Fast, Lightweight & Reliable
Optimized STL viewer performance
Handles large 3D models efficiently
Background loading for bigger files

🧠 Smart Workflow Tools
Reopen recent files instantly
Continue your last model
Built-in demo models included

🎨 Clean UI & Theme Support
Dark mode, light mode, or system theme
Minimal design focused on usability
Built for long viewing sessions

🧑‍🔧 PERFECT FOR
3D printing enthusiasts
Makers and hobbyists
Designers reviewing STL files
Anyone needing a 3D model viewer on Android

💡 WHY CHOOSE 3DSTLVIEWER?
✔ Fast and simple STL & 3MF viewer
✔ Easy-to-use 3D controls
✔ Wireframe mesh inspection
✔ Built specifically for 3D printing workflows

❤️ SUPPORT DEVELOPMENT

Optional in-app tips help support ongoing updates and new features.

🔧 NOTES
Large STL or 3MF files may take a few seconds to load depending on size
Designed for viewing and inspecting models (not editing or slicing)

Recent changes:

• Fixed crashes and reduced memory use when opening large STL and 3MF models
• Added loading feedback
• Added Bambu Studio and OrcaSlicer multi-plate 3MF support with plate names, navigation, and camera fitting
• Restored full-detail rendering for complex 3MF files
• Fixed pinch-to-zoom and improved touch controls
• Fixed “Open with” and default-app detection when file browsers report 3MF files as ZIP or generic binary data