Network Topology Builder
Draw devices and links, annotate IPs, subnets and VLANs, and export network documentation.
Drag devices, or select one and use arrow keys. Connect mode: select a source, then a destination. On small screens the diagram scrolls; all devices are available in the inspector.
Inspector
Connections
Mermaid source
Usage statistics
Processing happens on your device. When usage statistics are enabled for this tool, actions, settings, entered data and generated results may be sent to the site’s analytics database. You can disable this using Usage statistics below. Normal hosting access logs may still apply.
Checking the service…
Using Network Topology Builder
Draw devices and links, annotate IPs, subnets and VLANs, and export network documentation.
Try it
Select a device to edit its IP, subnet and VLAN. Drag it or use arrow keys, connect two devices and export JSON, Markdown, Mermaid or an image.
Processing & privacy
Processing happens on your device. When usage statistics are enabled for this tool, actions, settings, entered data and generated results may be sent to the site’s analytics database. You can disable this using Usage statistics below. Normal hosting access logs may still apply.