NETWORK TOPOLOGY DIAGRAM TOOL
Draw a network diagram that reads like an engineering document.
NetworkDraw is a free network diagram maker for office networks and industrial automation. Place equipment on an A4 page, route cables by hand, and keep device tags, models, IP addresses and port names together.
Start drawing for free →The editor works in your browser. An account is optional for saving projects across devices.
Office network diagrams
Map Internet access, firewalls, routers, switches, servers, access points and computers. Group equipment into named areas and document each connection with a cable tag and type.
Industrial network topology
Draw PLCs, remote I/O, HMI panels, robots, drives and network switches. Use nested panels or areas, fiber and Ethernet cable types, and paired page reference symbols for multi-page drawings.
Export drawings and cable records
Download vector PDF pages, a single-page SVG, or a filtered From–To list as Excel or PDF. The From–To list can include equipment tags, panel hierarchy, cable tags, cable types and port numbers.
Keep editing later
Drawings are backed up in the browser. Verified email accounts can save private projects and reopen them on another device. You can also download a portable JSON project file containing your drawing and uploaded images.