Copper Sketch
Design PCB traces and pads on your phone. Draw, snap, route, and export boards.
About Copper Sketch
A simple PCB layout tool for your Android device. Draw traces with your finger and they automatically snap to standard PCB routing angles (0°, 45°, 90°). Place pads, IC footprints, and passive component pins from a built-in library.
Features:
Freehand drawing that auto-straightens to PCB routing angles
Component library with DIP ICs (8 to 40 pin), resistors, capacitors, diodes, transistors, connectors, and more
Configurable trace width and pad size in mm
Place, move, rotate, and delete components
Add text labels and net names to pads
Snap-to-grid for precise placement
Pinch to zoom, pan to navigate
Multi-select with drag rectangle to move groups
Measurement tool to check distances between points
Design Rule Check (DRC) for trace clearance and unconnected pads
Export board as transparent PNG with copper-colored traces
Save and load designs as JSON files
Configurable board size (10mm to 500mm)
Classic PCB green color scheme
Useful for prototyping simple boards, planning perfboard layouts, or sketching PCB ideas on the go.
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