STL Converter/convert/stl-to-svg
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STL to SVG, in your browser.

Drop an .stl and pull out a vector .svg wireframe — straight to your laser cutter or CAD documentation.

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// about

STLSVG: what changes.

We project the mesh's sharp edges (angle threshold 20°) onto the XY plane and emit them as SVG lines. The result is a top-down wireframe in millimeters — ready for laser cutting, CNC pathing, or technical drawings.

This is a wireframe projection, not a solid silhouette. For a filled silhouette, run the SVG through Inkscape's "Trace Bitmap" after a screenshot, or export from your CAD tool directly.

Fully private

The file is parsed in WebAssembly + WebGL on your device. Nothing leaves.

Instant

No queue, no upload. Most files convert in well under a second.

Inspect before download

Orbit, pan and zoom the result in real time before you commit.

// faq

Frequently asked

Why is the output a wireframe?

Triangle meshes have no analytic silhouette. We emit all hard edges projected onto XY — the most useful output for fabrication.

What's the unit?

Millimeters, matching the STL's coordinate space.

Can I cut this on a laser?

Yes — open the SVG in LightBurn or your laser software. Filter or merge lines as needed.