flywire

Point-to-point wires for building the board by hand, drawn as seen from the back (where the wires run; x is mirrored). Each wire joins two pins; with the default limit a pin takes at most two wires, so every net is a chain.

Look

• Wheel zooms, drag pans, double-click fits. F flips back / front.
• Click a wire or a row to select it; ↑ ↓ step through the list; Space ticks it done.
• Click a pin to show its net. Esc clears.

Edit (E)

• Drag the round handle of the selected wire to bend it.
• Drag a square end handle onto another pin of the same net to reconnect it.
• Click a pin, then another pin of its net, to add a wire.
• Del deletes the selected wire, A bends it automatically, S straightens it, Ctrl+Z undoes.
• The list above the wires says when a net falls apart or a pin takes too many wires.

Your edits and ticks stay in this browser. Export saves them as JSON; run flywire board.kicad_pcb --edits wiring.json to rebuild the wire list and this page with them.