Free CNC viewer
View CNC G-code toolpaths online
Upload a CNC program to inspect rapid and cutting moves in a secure 2D browser preview before you run it on a machine.
Drop your CNC or G-code file here
Supports CNC, NC, TAP, and G-code files up to 25 MB.
Why use the online CNC viewer?
2D toolpath preview
Inspect rapid, linear, clockwise, and counter-clockwise XY motion before machining.
Program statistics
Review units, bounds, move counts, and estimated travel distance in one browser workspace.
Safer machine review
Preview generic G-code without executing it, then verify tooling and controller compatibility.