SVG tools for laser cutters — generate files, fix joints, and get cuts that actually fit.
Fix problems before cutting
Adjust files you already have
Create new designs from scratch
Cut a simple square on your actual material, measure it with calipers, and get your laser's kerf width. Save it to your machine profile for reference.
Download the test square, cut it on your actual material. Measure the cut piece with calipers. The difference between designed and measured size is your kerf.
One quick measurement tells LaserKit how your laser cuts — and every generator uses it automatically.
Every laser cutter burns away a tiny sliver of material as it cuts — that gap is called kerf. A typical laser removes about 0.1–0.3 mm per cut. That small gap adds up and can make joints too loose or too tight.
Every machine is different. The same laser at different power, speed, or with a different lens cuts a different kerf. There's no universal number — you have to measure yours.
KerfFinder generates a small test square. Cut it on a scrap of your actual material, measure it with calipers, and enter the number. LaserKit saves it to your profile and uses it automatically.
With your kerf saved, pick any generator from the home page. Your kerf will be pre-filled automatically. If you ever switch materials — thicker wood, acrylic, MDF — just run KerfFinder again and update the number.
Upload your SVG to scan for common problems. Problem areas are highlighted for review.
Colors found in this file and what operation each maps to based on your machine profile.
These are almost certainly accidents. Safe to remove automatically.
These might be intentional — open paths could be score lines, small elements could be detail work. Flag them in the file and review in LightBurn.
Detects intentional geometry that may be too small for the laser to produce cleanly — holes that will burn closed, slots narrower than the beam. These are warnings, not errors. Fix in your design tool before cutting.
Finds thin bridges within complex shapes — when two non-adjacent segments of the same closed path come within the threshold, that section is fragile and may snap during or after cutting. Straight-segment paths only; curved shapes are not analyzed.
Flagged paths are highlighted in cyan. Open in Illustrator or LightBurn to locate them.
Fix laser-cut joints so they fit the first time — no calipers or math required.
Drop in your project SVG — slot sizes are detected automatically. The next step generates a test strip.
Cut this on scrap material. Each slot is slightly different — try each one and pick the best fit.
Red = cut lines · Blue = engraved labels · Cut both pieces from the same scrap sheet
After cutting and testing, click the number of the slot that gave the best fit:
Slot dimensions have been adjusted for your material. Test one piece before cutting the full sheet.
Browser-based tools for laser cutters — diagnose your files, generate cut-ready parts, and prep for the machine. No account, no upload, no install.
File Check — drop in an SVG and get a 3-tier analysis: structure, operations, and duplicates.
KerfFinder — measure your laser's actual kerf from a test cut and store it with your profile.
Stand Builder — display stands, slot bases, and phone stands (X-cross & through-slot). Kerf-compensated slots, fit options, cable notch-ready.
Box Maker — open tray with optional lid. Finger-jointed panels, kerf-adjusted.
Living Hinge — alternating slot pattern sized to material thickness. Set width, length, and kerf — outputs a bendable cut-ready SVG panel.
LetterForge — coming soon.
Resize — scale any SVG to exact dimensions in mm or inches, with aspect-ratio lock.
Tabs & Bridges — add holding tabs to exterior cut paths so pieces stay on the sheet during cutting.
FitFix — correct slot width on finger joints and inlay pockets. (Finger joints in progress.)
Drop in an SVG and File Check runs three tiers of analysis — each tier more specific than the last. Results are flagged by severity so you know what to fix before cutting.
Open paths, tiny elements, out-of-bounds geometry, and hairlines that won't cut reliably.
Color mapping and operation detection — checks that your cut, score, and engrave layers are identifiable.
Duplicate shapes, overlapping segments, and anchor point hotspots — the hidden problems that cause double-cuts.
LaserKit runs entirely in your browser. No data is sent anywhere. No account needed. All files stay on your machine.
This is an active beta. More tools and improvements on the way. Feedback welcome.
Scales your design to exact dimensions. Shapes and proportions are preserved — enter a new width or height and the other updates automatically.
Got a design made for 1/4" but you're cutting 1/8"? Drop the SVG, confirm what the design was built for, pick your actual stock, and download — slot depths update, panel dimensions stay the same.
Generate two-piece interlocking stands with kerf-compensated T-slots. No glue, no hardware — just cut and slide together.
Choose a style, enter your dimensions, and download a cut-ready SVG. Kerf compensation is applied automatically.
Choose a preset or enter custom dimensions below.
Generate a flex-cut hinge pattern sized to your material. The alternating slot layout lets flat sheet bend smoothly without snapping — set your dimensions and cut.
A living hinge is a flex zone laser-cut into flat sheet material. Alternating rows of slots leave thin bridges of intact material that bend — turning a rigid sheet into something that folds without a mechanical hinge.
The Side A and Side B panels are solid pieces on each end of the hinge zone. They stay rigid when the hinge bends — they become the functional faces of your finished piece. The whole thing cuts from a single sheet.
Adds small holding tabs to exterior cut paths so pieces stay attached to the sheet during cutting. Snap them out by hand when done. Interior cutouts are left untouched.
Type text, pick a font, and get a welded SVG with score/engrave lines and an offset backer (solid backing layer).
Reassign SVG layer colors to match your machine profile. Upload a file from Etsy or another source, map each color to an operation, and download a remapped copy. Your original file is never changed.
Split paths into individual pieces you can move and edit independently. Separate shapes packed into one compound path, cut a path at its corners, or break it at every single anchor point.
Generate a circle or square starter shape with a loop tab or hanging hole — sized to your spec and ready to bring into your design.