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G-Code Editor

Write, inspect and preview CNC programs locally, with line-level diagnostics and a command helper.

Local browser processing

PROGRAM

G-code editor

Cursor L1 · simulation L0/14

SIMULATION

Machine & toolpath

L0 / 14
Ready to simulate

Press Play or Next line. Both views follow the same program line.

Isometric milling previewXYZ · mm · illustrative stock
Workpiece top Z 0.00 mmTool tip follows sampled arcs · stock is illustrative
Potential cutAir feedRapid travelRapid below surfaceFeed · spindle offPlanned · faded

Playback is accelerated and feed-aware; rapid assumes 6000 mm/min. Green estimates feed below the stock top with the spindle running. The shaded depth region is a surface reference, not the shape of your stock or a material-removal simulation.

Tool position · mmX 0.00 · Y 0.00 · Z 0.00
Tool / coolantT- · coolant off
SpindleOff
Feed / setup0 mm/min · G54

Ctrl+S export · Ctrl+/ comment · Ctrl+Enter play/pause · Tab indent

Code assistant

Insert at cursor

Select the target line before inserting. Review controller syntax and machine clearances.

Safe start is an example, not a machine-specific guarantee. Check G54, tool offsets, spindle, stock and limits.

Program review

0 items to review

No basic issues found.

Surface-based preview does not model stock boundaries, tool diameter, fixtures, machine limits, cutter compensation, canned cycles or material removal. Verify on the target controller before cutting.

© 2026
Dr Necrotix.
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