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)