Free & open source

Design Network
Topologies in Isometric 3D

Write a simple text DSL — get a beautiful, interactive isometric network diagram instantly. No sign-up, no install, runs entirely in your browser.

topology.netdsl
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# Define your network topology
# Nodes auto-detect type from suffix

users:user --- loadbalancer:switch

loadbalancer --- web-01:server
loadbalancer --- web-02:server

web-01 --- db-primary:database
web-02 --- db-replica:database

web-01 --- fw-main:firewall
fw-main --- cloud-api:cloud

admin:laptop --- fw-main
✓ 8 nodes ✓ 7 edges netdsl
Live Preview
Live-rendered isometric network topology

Everything you need to map your network

Purpose-built for network engineers, architects, and anyone who thinks in topologies.

Text-Based DSL

Clean, readable syntax. Type server --- database and see it render instantly.

Isometric 3D

Auto-layout on an isometric grid with animated edge connections and crisp hand-crafted icons.

Interactive Canvas

Pan, zoom, drag nodes, marquee-select. Right-click to add new nodes directly on the diagram.

Export Anywhere

Export as PNG, SVG, or copy the DSL text to version-control your topology as code.

7 Node Types

Server, database, cloud, switch, firewall, laptop, user — each with an isometric icon.

Zero Setup

One HTML file. No install, no build tools, no accounts. Open in any browser and go.

The full editor experience

Code on the left, live isometric canvas on the right. Edit properties in the node drawer.

Ready to map your network?

Jump straight in — no setup, no account, just start designing.