STL viewer

Open STL files online.

View STL files without installing Cura or anything else. Rotate and zoom, see the real size and triangle count, and take a screenshot.

Opens STL directly in your browser
Real dimensions, edges and wireframe
Files stay on your computer

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Files stay on your computer.

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What is STL?

STL describes a surface as a list of triangles, with no colour, material or unit information. It is the default file for 3D printing and is exported by almost every CAD and modelling program.

More about STL

Convert STL

STL → STEP STL → STP STL → IGES STL → BREP STL → OBJ STL → FBX STL → GLB STL → glTF

Questions

How do I open an STL file without Cura?

Drop it on the viewer above. It opens in your browser, on Windows, Mac, Linux or a phone.

Can I convert the STL file after viewing it?

Yes. Use the links on this page, or the converter, to save it as STEP, STL, OBJ, GLB and more.

Are my files uploaded?

No. Files open locally in your browser.