STL to SVG Converter — Free Online
Convert 3D STL mesh files to 2D SVG vectors. Project your 3D model as clean SVG outlines for laser cutting, CNC, documentation, and web use.
Upload STL
Drop your STL file here or click to browse
Supports binary and ASCII .stl files
Projection Settings
Top (XY) gives a plan view. Front (XZ) gives an elevation. Side (YZ) gives a profile. All edges are rendered — no hidden line removal.
How STL to SVG Conversion Works
Upload STL
Drag and drop your STL file. The parser handles both binary and ASCII STL formats automatically.
Parse Triangles
Every triangle in the STL mesh is extracted with its three vertices in 3D space (X, Y, Z coordinates).
Project to 2D
Each vertex is projected onto the selected 2D plane by dropping one coordinate. This flattens the 3D model into a 2D outline.
Generate SVG
The projected edges are rendered as SVG path elements inside a properly fitted viewBox, ready for download.
Why Convert STL to SVG?
Laser Cutting
Project your 3D model to get a flat cross-section or outline, then use the SVG directly in your laser cutter software. Perfect for cutting profiles from sheet material.
CNC Toolpaths
Generate 2D vector outlines from 3D models for CNC routing and milling. Convert the SVG to DXF for direct import into CAM software.
Technical Documentation
Create clean 2D views of 3D parts for technical drawings, assembly instructions, datasheets, and product documentation without needing full CAD software.
Web Graphics
Use the SVG output directly on websites for product illustrations, technical diagrams, and interactive graphics. SVG is resolution-independent and loads fast.
Frequently Asked Questions
How do I convert STL to SVG online for free?
Upload your STL file (binary or ASCII format) into our free converter, choose your projection view (Top, Front, or Side), adjust settings, and click Convert to SVG. The conversion runs entirely in your browser — no server upload, no sign-up required.
Can you convert STL to SVG?
Yes. STL files describe 3D triangle meshes. Our converter projects each triangle onto a 2D plane, producing an SVG wireframe of the 3D model. You can choose which plane to project onto — Top (XY), Front (XZ), or Side (YZ).
What is the difference between STL and SVG?
STL (Standard Tessellation Language) is a 3D file format that describes surfaces as triangular facets. SVG (Scalable Vector Graphics) is a 2D vector format for the web. Converting STL to SVG projects the 3D geometry onto a 2D plane, producing a flat vector outline.
How does STL to SVG conversion work?
The converter parses the STL file to extract all triangle vertices, then projects each vertex onto the chosen 2D plane by dropping one coordinate (e.g., dropping Z for a top-down XY view). The projected triangle edges become SVG line segments inside a properly scaled viewBox.
Can I use the SVG output for laser cutting?
Yes. The SVG wireframe output is ideal for laser cutting because it produces clean vector paths. Choose the projection view that gives you the cross-section you need, then import the SVG into your laser cutter software or convert it to DXF.
How do I convert STL to 2D?
Upload your STL file and select a projection view. The Top (XY) view gives you a plan view looking down. The Front (XZ) view gives an elevation. The Side (YZ) view gives a profile. Each produces a 2D SVG vector you can download and use.
Does this work with binary and ASCII STL files?
Yes. The converter automatically detects whether your STL file is in binary or ASCII format and parses it accordingly. Binary STL is the most common format exported by CAD software and 3D modeling tools.
Is my STL file uploaded to a server?
No. The entire conversion runs client-side in your browser using JavaScript. Your files never leave your device, keeping your designs private and secure.
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