Network Diagram Tool — Draw Network Topology Online
Design professional network diagrams with drag-and-drop icons for servers, routers, switches, and more. Connect devices to visualize your topology. All data stays in your browser — nothing leaves your device.
How to Use the Network Diagram Tool
- Pick a device type — choose Server, Router, Switch, Cloud, Computer, or Firewall from the toolbar.
- Click on the canvas to place the device. Drag it to reposition.
- Connect devices — switch to Connect mode, click the source device, then click the target device.
- Edit labels — double-click any device to rename it.
- Delete — select a device or link, then press the Delete button.
- Export — download your network diagram as an SVG file.
Why Network Diagrams Still Matter
Network diagrams are the universal language of infrastructure. They give IT teams, stakeholders, and new hires a visual map of how systems connect, communicate, and depend on each other.
A well-documented network topology accelerates troubleshooting, simplifies capacity planning, and ensures compliance with security audits. Without one, even simple networks become black boxes that only one person understands.
Frequently Asked Questions
Yes — switch to Select mode and drag any device to reposition it. Connected links will follow automatically.
Double-click any device to enter edit mode. Type a new label and press Enter or click away to save.
Currently the tool supports the six built-in device types: Server, Router, Switch, Cloud, Computer, and Firewall. Each has a distinct icon for easy identification.
Use Cases
Data Center Documentation
Map server racks, switches, firewalls, and their connections for accurate data center inventory management.
Cloud Architecture Visualization
Design hybrid and multi-cloud topologies showing VPCs, subnets, and connectivity between on-prem and cloud resources.
Security Audit Diagrams
Document firewall rules and network segments to prepare for compliance audits and penetration testing.
Office Network Planning
Plan office LANs with switches, access points, and internet connectivity before purchasing equipment.