The VLSM Visualizer lets you drag network devices onto a canvas, connect them with cables,
and then automatically divides your base network into subnets based on those connections.
How to use:
Enter your base network in CIDR form (e.g. 192.168.0.0/24).
Drag devices (routers, switches, PCs, etc.) from the toolbox onto the canvas.
Click “Cable Mode,” then click two devices to connect them.
Use “Delete Mode” to remove any devices or cables.
When ready, click “Calculate Subnets.”
View your subnets in the table and on the canvas (colored outlines and IP labels).
