Network diagram maker

Draw a network: the internet connection, firewall, routers and switches, Wi-Fi access points, computers and servers, grouped into networks or zones. It opens with a small office network to change into yours.

Network diagram symbols

Globe and cloud: the internet, and anything outside your network
Firewall: where traffic is filtered
Router and switch: where networks meet, and where devices plug in
Access point, laptop, mobile and workstation: the devices people use
Server, database and storage: the machines that serve them

Draw links as lines without arrowheads, as the example does, and a dashed line for wireless.

Group by network or zone

Put each network, VLAN, subnet or site in a container, such as "Office LAN", "DMZ" or "Guest Wi-Fi", and add its address range to the label, such as 192.168.1.0/24. A container moves everything inside it, so the layout stays tidy as it grows.

Keep it useful

Label links with what matters: speed, VLAN or port
Label devices with the names or IP addresses people will look for
When both matter, draw the physical layout (cables and ports) and the logical one (networks and routing) as separate diagrams

Questions

Is it for home or office networks?

Either: from a home router with a few devices to offices and data centres with several sites. Use one tab per site or per level of detail.

Can I share a network diagram without uploading it?

Yes. Share creates a link that carries the diagram itself, compressed, so nothing is stored on a server. Anyone with the link can see it, including any addresses written on it.

Does it discover the devices on my network?

No. You draw the diagram yourself; nothing scans your network, and the editor never connects to it.