Free DXF CNC File Optimizer

Analyze DXF files for CNC, laser and plasma cutting. Find splines, duplicate geometry, open contours and tiny entities before production.

Upload DXF

Drop your DXF file here or click to choose a file · processed locally in your browser

CNC Optimization

Join tolerancemm

Close gap tolerancemm

Spline tolerancemm

Maximum shape deviationmm

Output geometryMode

Smart curve fitting — use long true circular arcs where the original curve supports them

Curve smoothing tolerancemm

CNC corner safety — add radius to genuinely sharp corners

Round corners belowdegrees

Corner radiusmm

Minimum usable radiusmm

Detect duplicate entities Detect open contours Detect splines and ellipses Detect zero-length / tiny geometry

Optional G-code

Generate a simple generic GRBL toolpath from optimized POLYLINE geometry. Always verify it in CAM/controller software before machining.

ProcessProfile

Feed ratemm/min

Power / spindle S0–1000

V11.1 adds Laser/Plasma output modes, sharp-corner controls and optional generic GRBL G-code. It prioritizes the original DXF shape, uses stricter global LINE/ARC fitting, and clearly shows when changed settings still need to be applied, reduces unnecessary segments, can add tangent corner radii, removes duplicates and closes only small gaps within your tolerance.

DXF Preview

Upload a DXF file to preview and analyze the geometry.

Entities—

Layers—

Splines—

Open candidates—

Duplicates—

CNC File Analysis

SPLINE entities—

ELLIPSE entities—

Duplicate entities—

Tiny / zero entities—

Potential open chains—

DXF units—

No file analyzed yet.

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