SVG to STL converter

1. Drop your SVG above. It's read on your device, not uploaded.
2. Choose what to make: Sign / logo (artwork raised on a plate), Keychain (outline base with a ring hole), Stencil (artwork cut out of a plate) or Cookie cutter.
3. Set the width in mm. If the file states its size in mm or inches, that size is used to start with.
4. For multi-colour artwork, switch colours on or off (for example a white background) and give each its own height.
5. Download an STL (one solid body) or a 3MF with one part per colour, ready to assign filaments on a multi-colour printer.

An SVG describes shapes as paths, each with a fill (the inside) and a stroke (the outline line).

• Fills become solid shapes. Holes follow the file's fill rule (even-odd or non-zero), exactly as your editor shows them, so the inside of an O stays open.
• Strokes have no area of their own, which is why line icons vanish or turn into solid blobs in many converters. This tool turns every stroke into a solid outline at its real width, with the right caps and corners, so you don't have to use Stroke to Path first.
• Overlapping shapes are merged into one clean solid. Shapes drawn later cover earlier ones, just like on screen.

SVG sizes are tricky because editors use different “pixels per inch”. The web standard is 96 px per inch, which Inkscape has used since version 0.92. Illustrator writes 72 units per inch, which is why its files often import at 75% size in other programs.

• The most reliable fix: set the document size in mm in your editor before saving.
• Or simply set the width you want here; the height follows the artwork's proportions.

Live text in an SVG depends on fonts, which a 3D converter can't see. If your file contains text, you'll get a note; convert it in your editor first:

• Inkscape: select the text, then Path → Object to Path.
• Illustrator: Type → Create Outlines (Shift+Ctrl+O).

Embedded bitmap images, clip paths and masks are also skipped, and you'll see a note when that happens.

In a stencil, the enclosed parts of letters and shapes (the inside of O, A, B, D, P, R, 0, 8) would fall out as loose pieces. The stencil mode finds every such island and adds two bridges through its middle, top and bottom. The default width is 1.5 mm, about four lines on a 0.4 mm nozzle. Make them wider for spray paint. A note tells you how many bridges were added and whether anything would still fall out.

The cookie cutter mode follows the outer outline of your artwork with a thin cutting wall (0.8 mm by default) and a wider flange on top for pressing. The cutter is mirrored for you: you use it upside down, so letters and lopsided shapes come out the right way round.

The drawing's inner lines (the edges between colours, and thin strokes) can press a pattern into the dough. Built in adds them as ribs 3 mm shorter than the cutting edge, held by thin bars at the top, so cutting and marking happen in one press. Stamp makes a separate plate with the lines raised on it, to press onto the cookie after cutting; it gives deeper, cleaner marks and is easier to clean.

3D-printed cookie cutters aren't food-safe in the strict sense: the grooves between layers trap bacteria and are hard to clean. Prusa's advice is to print with natural, uncoloured filament and a stainless steel nozzle, use the cutter briefly, hand-wash it in cool water (PLA softens above about 60 °C, so no dishwasher) and replace it regularly.

Details thinner than about two nozzle widths (0.8 mm on a 0.4 mm nozzle) often don't print. The tool tells you how much of the artwork is that thin and can thicken thin details to a printable width without changing the rest.

PrusaSlicer 2.7+ can emboss an SVG onto a model (right-click → Add part → SVG), and Bambu Studio and OrcaSlicer import SVGs as extruded shapes. They're great for adding a logo to an existing part. This tool is better when you want a finished sign, keychain, stencil or cutter, correct strokes, per-colour heights, or a file for any slicer.

Working from a photo instead of a drawing? Try the lithophane maker.