How to Prepare SVG Files for Laser Cutting
Optimize SVG files for laser cutters. Set up cut lines, engrave fills, and layer colors correctly for Glowforge, xTool, Sculpfun, and LightBurn software.
Drop your image here
Supports PNG, JPG, BMP, WEBP up to 5MB
Color-Coding SVG Layers for Laser Cutters
Laser software (Glowforge, LightBurn) reads SVG colors as separate operation layers. Use red for cut lines and black for engrave fills — the most universal convention.
- Red stroke, no fill = vector cut line
- Black fill, no stroke = raster engrave area
- Blue stroke = score or engrave line
- Set stroke width to 0.001 inch or 0.025mm (hairline) for cut lines
Inkscape Settings for Laser-Ready SVG
In Inkscape, set document units to mm. Set all cut-line strokes to 0.1px width with a pure red color. Remove all gradients. Convert all text to paths (Path > Object to Path). Export as Plain SVG, not Inkscape SVG.
- Document units: mm, not pixels
- Cut strokes: red, 0.1px width, no fill
- Engrave areas: black fill, no stroke
- Text: Path > Object to Path before saving
- Save as: Plain SVG (not Inkscape SVG)
Frequently Asked Questions
What stroke width should I use for laser cut lines?
Set to 0.001 inch or 0.025mm — essentially hairline. Laser software reads any thin stroke as a cut line.
How do I prepare an SVG for Glowforge?
Color-code layers: red or blue for cuts, black for engrave. Upload directly — Glowforge reads color layers as separate operations.
Why is my laser cutting inside the lines?
The laser cuts the center of the stroke. For accurate parts, set the stroke to the kerf width of your laser (usually 0.1–0.2mm) and offset paths accordingly.
Can I use Cricut SVG files on a laser cutter?
Usually yes — the path structure is the same. You may need to reassign colors to match your laser software's layer convention.
Related guides
Ready to Convert Your Image to SVG?
Free online converter — no sign-up, no watermarks, results in under 3 seconds.
Try It Free — Convert Image to SVG