Introduction

FreeRouting Desktop is a modern desktop GUI for FreeRouting, replacing the old Swing interface. Built with Go + WebView2 + React + TypeScript + LeaferJS, it provides PCB canvas rendering, layer visibility toggles, ratsnest display, zoom/pan, object selection, measurement tools, and drag-and-drop DSN file opening. Auto-detects and installs FreeRouting, launches it in API mode, and communicates via a CORS proxy.

Screenshots

Features

LeaferJS PCB canvas — real-time DSN and SES routing visualization
Per-layer visibility toggles with custom colors
Ratsnest (airwire) display
Zoom/pan and object selection
Canvas measurement tool (mm/mil)
Unit and language switching (mm/mil + English/中文)
Drag-and-drop .dsn file opening
Recent files list (localStorage)
Auto-detects/downloads/installs FreeRouting
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