K&G MAKER TOOL

SVG File Checker

Preflight an SVG before it reaches the laser. Check cut-path closure, sizing, duplicate geometry, colors, text, raster images, unsupported features, and common file problems without uploading your artwork to a server.

What this tool does: Upload an SVG before you send it to the laser. The checker inspects the file structure, cut-path closure, sizing, colors, duplicate geometry, text, raster images, and other common troublemakers, then shows you exactly what deserves a second look.

PUBLIC RELEASE 2.2 LASER SVG PREFLIGHT K&G COLOR WORKFLOW BROWSER-ONLY

Your SVG stays on your device

Upload your SVGDrop in the exact file you plan to use.

Run preflightThe checker scans geometry, size, colors, and structure.

Inspect the flagsClick Show to locate suspicious artwork in the preview.

Correct or reviewUse Safe Corrections, then review anything that still needs a human decision.

PREFLIGHT YOUR LASER FILEPublic Release v2.2

RED = CUT•BLUE = SCORE•BLACK = ENGRAVE•GREEN = OPTIONAL

1 Upload your SVG

SVG

Drop an SVG here or choose the file from your computer.

No file loaded

You can also drop an SVG directly onto the large preview area.

2 Preflight settings

Laser file profile

K&G profile: RED cut and BLACK engrave paths should be closed. BLUE score paths may be open. GREEN is optional. Other visible colors are flagged for review, not automatically treated as errors.

Advanced sensitivity

Tiny geometry threshold (in) Thick cut stroke warning (in) Flag non-standard visible colors

Upload an SVG to begin.

Safe Corrections

These fixes only touch problems we can correct without intentionally changing the design. Your uploaded file is never overwritten.

Close open RED CUT + BLACK ENGRAVE subpaths Maximum auto-close gap (in)

Compound-path aware: if one shape contains many subpaths, the checker closes the actual open subpath in place instead of adding a close command to the end of the whole shape.

Remove exact duplicate geometry when the operation matches Remove zero-length / near-zero geometry Strip scripts, event handlers, javascript links, and foreign objects

Run preflight first. If a safe correction is available, it will appear here.

File facts

Canvas size—

Artwork bounds—

ViewBox—

Vector objects—

Path commands—

Size interpretation—

Preflight report

Save a plain-text report with the score, file facts, operation counts, and every issue found.

LIVE FILE PREVIEW

SVG Preview Upload a file to begin

SVG

Drop in a laser cut file The checker runs locally in your browser.

Laser Map is a diagnostic view only. It does not change or rewrite your uploaded SVG.

—/100

LASER READINESS

Upload a file

We’ll check the things most likely to waste material or create a surprise when the SVG reaches laser software.

0Critical

0Warnings

0Passed

OPERATION MAPWhat the laser may see

CutRed geometry

ScoreBlue geometry

EngraveBlack geometry

OptionalGreen geometry

OtherOther visible colors

No paintNo visible stroke/fill

STRUCTUREWhat is inside the SVG

Paths0

Basic shapes0

Open CUT paths0

Open ENGRAVE paths0

Duplicate geometry0

Text objects0

Raster images0

PREFLIGHT RESULTSWhat should I fix?

Upload an SVG and the preflight results will appear here.

Technical detailsElement counts and SVG feature inventory

Important: This is a preflight assistant, not a replacement for a test cut. SVG behavior can vary between LightBurn, xTool Creative Space, Glowforge, Illustrator, Inkscape, and other software. If a warning looks intentional, it may be perfectly valid for your workflow.