Free Online STL File Viewer

Upload and view your 3D STL models directly in your browser. No installation, fast, and secure.

Start Viewing Now!

Model Controls

Upload Model

Drag & drop your STL file here

Model Information

File Name: N/A
Triangles: N/A
Dimensions: N/A

View Options

Upload an STL file to get started.

Loading model...

Features of Our Online STL Viewer

Easy Upload

Drag and drop your STL files or select them from your device with a simple click.

Interactive 3D View

Rotate, pan, and zoom your models with intuitive orbit controls for a complete view.

Customization

Change model color, toggle wireframe mode, and show/hide grid for better visualization.

Detailed Information

Get insights into your models with file name, triangle count, and bounding box dimensions.

No Installation

View your STL files instantly from any modern web browser, no software needed.

Secure & Private

Your files are processed directly in your browser and never uploaded to our servers.

How to Use Our Free STL Viewer

  1. Open the Viewer: Navigate to this page in your web browser.
  2. Upload Your File: Click on the "Or click to select file" button or drag and drop your STL file into the designated area.
  3. View Your Model: Your 3D model will appear in the viewer. Use your mouse to rotate (left-click + drag), pan (right-click + drag), and zoom (scroll wheel).
  4. Adjust View Options: Use the controls on the left panel to reset the camera, toggle wireframe mode, show/hide the grid, and change the model's color.
  5. Get Model Info: View essential details like file name, triangle count, and model dimensions in the "Model Information" section.

Why Choose Our Free Online STL Viewer?

Completely Free

Access all features without any cost or hidden fees. Our viewer is 100% free to use.

Browser-Based Convenience

No downloads, no installations. View your STL files anywhere, anytime, on any device.

Fast & Efficient

Optimized for quick loading and smooth 3D rendering, even for complex models.

Data Privacy Focused

We value your privacy. Files are processed client-side, ensuring your data never leaves your device.

User-Friendly Interface

Designed for ease of use, our intuitive interface makes 3D model viewing simple for everyone.

Supports All STL Types

Whether your file is ASCII or binary, our viewer handles both seamlessly.

Frequently Asked Questions (FAQ)

What is an STL file?

An STL (stereolithography) file is a file format native to the stereolithography CAD software created by 3D Systems. It's widely used for 3D printing and rapid prototyping.

Is this STL viewer truly free?

Yes, our online STL viewer is completely free to use, with no hidden costs or subscriptions.

Is my data safe and private?

Absolutely. Your STL files are processed locally in your browser and are never uploaded to our servers, ensuring maximum privacy and security.

Do I need to install any software?

No, our viewer works entirely in your web browser. There's no need to install any additional software or plugins.

What types of STL files are supported?

Our viewer supports both ASCII and binary STL file formats.

Can I view models on my mobile device?

Yes, the viewer is designed to be responsive and works well on both desktop and mobile browsers.