STL Viewer

View and interact with 3D STL models directly in your browser. Upload your models and explore them from every angle without installing any software.

Upload 3D Model

Drag & drop your STL file here or click to browse

Supports STL files (binary and ASCII formats)

What is a 3D STL File?

STL (Stereolithography) is one of the most common file formats used in 3D printing and computer-aided design (CAD). It represents 3D models as a collection of triangular facets that define the surface geometry of an object.

Key characteristics of STL files:

  • Represents only the surface geometry of objects (no color, texture, or material properties)
  • Available in both binary (more compact) and ASCII (human-readable) formats
  • Widely supported by virtually all 3D printing software and hardware
  • Used extensively in rapid prototyping, manufacturing, and 3D visualization

STL files are the standard for transferring 3D models between different software applications and for preparing models for 3D printing. Our viewer allows you to easily visualize these files directly in your browser.

Frequently Asked Questions

What can I do with the STL Viewer?

Our STL Viewer allows you to upload and view 3D models in STL format directly in your browser. You can rotate, zoom, and inspect models from all angles without needing specialized software.

What is an STL file?

STL (Stereolithography) is a widely used 3D file format that describes the surface geometry of a 3D object. It's commonly used for 3D printing, rapid prototyping, and computer-aided manufacturing.

How do I use the STL Viewer?

Simply upload your STL file using the upload button, and the 3D model will appear in the viewer. You can then use your mouse to rotate the model, scroll to zoom in/out, and right-click and drag to pan the view.

What size STL files can I upload?

The viewer supports STL files up to 50MB in size. Larger files may take longer to load depending on your internet connection speed.

Is my 3D model data secure?

Yes, your 3D models are processed entirely in your browser. We never upload or store your models on our servers, ensuring complete privacy and security of your intellectual property.

Can I download or export models from the viewer?

The STL Viewer is designed for viewing only. It doesn't currently support exporting to other formats or downloading modified versions of the models.

Which browsers support the STL Viewer?

The STL Viewer works best on modern browsers like Chrome, Firefox, Edge, and Safari. Make sure your browser is updated to the latest version for optimal performance.

Are both binary and ASCII STL files supported?

Yes, our viewer supports both binary and ASCII STL file formats. The viewer will automatically detect and render the appropriate format when you upload your file.

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