Online Nesting Software
for CNC, Laser & Plasma Cutting

Yes. Nestpact is online nesting software that runs in your browser. Upload a DXF, nest your parts on the sheet, edit the layout by hand if you want, and download the optimized DXF. Nothing to install — try it free, no credit card needed.

Yes. Nestpact is built for laser cutting, plasma cutting, waterjet and CNC router workflows. Configure the kerf width to match your beam or bit, set part rotations and gap, and download the layout DXF for any CAM software.

Nestpact handles sheet metal nesting and steel nesting for plasma, waterjet and laser cutting. Set kerf width and edge offset to match the machine, upload the parts DXF, and the optimizer arranges them on the steel, aluminum or stainless sheet. Works for thin sheet and thick plate alike.

No installation. Nestpact is online nesting software — it runs entirely in any modern web browser on desktop, tablet or mobile. There is nothing to download, and you can try a nest before creating a free account.

Standard DXF files from any CAD software: AutoCAD, Fusion 360, SolidWorks, FreeCAD, LibreCAD, Inkscape, and more — lines, polylines, circles, arcs, splines, ellipses, and block inserts. 3D solids (STL, OBJ, PLY, 3MF) are flattened to their 2D silhouette automatically. Output is a nested DXF for any CAM, or ready-to-run G-code straight from the app.

The core nesting software is free with no time limit. Paid tiers unlock higher part counts per job, advanced optimization presets, and priority processing. There will always be a free tier.

A free DXF validator. Drop a file in and it flags anything that would break a clean cut: open contours, duplicate lines, micro-segments, near-coincident points, self-intersections. The visual preview shows exactly where each issue sits on the geometry.

Three severity tiers. Blocking issues (open contours, self-intersections) where the cut won't complete cleanly. Waste issues (duplicate or overlapping geometry) where the laser traces the same line twice. Hidden issues (sub-millimetre segments, near-coincident endpoints) that some controllers silently choke on.

Yes for most of them. Pick the fixes you want, hit Apply, download the cleaned DXF. It closes nearly-closed paths, snaps near-coincident endpoints, removes micro-segments, and deduplicates overlapping lines. Works on output from Fusion 360, AutoCAD, Inkscape, Illustrator, LibreCAD, and the rest.

No. The checker is fully usable without signing up. Drop in a file, see the issues, fix what you need, and download — no email, no login.

Any flat stock: plywood, MDF, acrylic, sheet metal, leather, foam, composites, stone. Configure gap, kerf, and edge offsets to match your material and cutting method.

Use the dedicated "Grain" rotation mode for grain-sensitive materials like wood, fabric or rolled metal. It allows only 0 and 180 degree placements, so parts flip end-for-end but never sideways and the grain direction is preserved while still packing a little tighter than no rotation. "None" locks every part to 0 degrees. For metal or acrylic, enable free rotation for tighter packing.

Nestpact outputs standard DXF files that import into RDWorks, LightBurn, Mach3, UCCNC, SheetCAM, FlashCut, or any other CAM software. It can also generate G-code directly for laser, plasma, waterjet and router machines, with lead-ins, holding tabs, per-layer operations and a configurable post-processor for your controller.

Yes. After nesting, generate an NC program without leaving the browser: choose laser, plasma, waterjet or router mode, set kerf, lead-in/out style, holding tabs and spindle or feed parameters, and download the .nc file. Layers can be routed to different operations (cut, engrave, drill), and router mode emits full Z moves with stepdown passes.

Yes. The "Interlock" optimization level runs a dedicated true no-fit-polygon algorithm. Instead of treating each part as a bounding box, it places parts by their exact contours so concave shapes — L, T, U, brackets, jigsaw profiles — tuck into each other and interlock. That recovers the space bounding-box packing wastes to phantom clearance, which means higher utilization on irregular parts.

Yes. Interior contours are detected automatically. With Hole Filling enabled, smaller parts can be placed inside the cutouts of larger ones.

Save the current sheet and continue on another — even with different dimensions. Download all sheet layouts when you're done. You can also bank the usable remainder of any sheet as an offcut and nest onto it in a later job, so drops stop piling up next to the machine.