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CGCADGuide.tools
Open-Source Client-Side EDA & CAM Gerber Inspector

Online PCB Gerber RS-274X & Excellon Drill Viewer

Inspect KiCad, Altium, LibrePCB, and Eagle Gerber fabrication layers and Excellon NC drill files locally in your browser—and export PCB outlines and pad coordinates to mechanical DXF.

Load Fabrication Files

Supports RS-274X / Gerber X2 (`.gbr`, `.gtl`, `.gbl`, `.gko`) and Excellon NC Drill (`.drl`, `.txt`).

Layer Stackup Visibility
Gerber Aperture Table (4)
D-CodeShapeSize (mm)
D10CircleØ0.250
D11CircleØ1.600
D12Rect1.40×0.80
D13CircleØ0.800
Excellon Drill Tools (2)
ToolBit Ø (mm)Holes
T01Ø0.908
T02Ø3.204
Board Size
60.3 × 40.3 mm
Copper Traces
28
Flashed Pads
20
NC Drill Holes
12
STM32_Breakout-F_Cu.gtl — Interactive CAM Artwork Viewport