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STL Viewer

Open 3D Model

Drag and drop your 3D model here, or click to browse

Supports: STL • Preview only • Max size: 100 MB

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STL Viewer

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STL viewing is geometry-first and may not include full advanced material behavior from richer formats.

Related viewers

GLB ViewerGLTF ViewerFBX ViewerOBJ ViewerPLY Viewer

Need technical stats?

STL Inspector

Done previewing? Convert your STL

All convertersSTL to GLBSTL to GLTFSTL to OBJSTL to PLYSTL to USDZ

Current tool guide

STL viewer: best use cases

Use this STL viewer for fast in-browser preview before conversion, optimization, or engine import.

  • Open STL files quickly to verify geometry and scene orientation.
  • Use the STL inspector for technical stats before delivery.
  • Use a converter page when you need to export to a different format.

FAQ

How do I view STL files online?

Upload your file and the viewer renders it directly in your browser so you can rotate, zoom, and inspect the model.

Is this 3D viewer free and private?

Yes. The viewer is free to use and runs in-browser without signup or mandatory server upload.

Can I use this viewer before converting formats?

Yes. View the model first, then use the TextureFast converter pages to convert into your required target format.