Click the device buttons in the left sidebar (Switch, Router, Firewall, etc.) to place them on canvas. Drag to reposition. Click the × on a device to remove it.

Click a port on one device, then a port on another to create a cable. Click empty canvas to cancel. Solid = untagged, dashed = tagged, dash-dot = both. Right-click a cable to delete it.

Click a port to open its editor. Set the device name, IP, assign Untagged/Tagged VLANs, toggle PoE with wattage, or mark it as a WAN uplink. Right-click a device to set its PoE budget inline.

Expand a VLAN in the sidebar to assign DHCP, DNS, SBC, or Gateway services to specific devices. Select Cloud for DNS to use external resolvers (8.8.8.8, 1.1.1.1). SBC can be assigned to Computers, Phones, and Servers to satisfy phone SBC requirements.

Red bars on devices indicate missing services, no gateway, no SBC, no WAN path, or PoE over budget. Click the warning badge for details.

Use Path to Internet to hover devices and see the route to WAN. Path to Point B traces between two clicked ports. Trace by IP finds a path between two IP addresses.

Create wireless networks and assign them to a VLAN and an Access Point. SSIDs appear as broadcast chips on the AP.

Export / Import JSON files. Share with AI copies the topology as text for LLM analysis. Report shows a port assignment table with CSV download. Cables generates a cable schedule and BOM. Export PNG saves a screenshot.

Ctrl+Z undo · Ctrl+Shift+Z redo · Ctrl+S export · Ctrl+F search · Delete remove selected device. Canvas auto-saves to your browser.