Free Network Diagram Generator

Create network diagrams instantly with our free AI tool. Design network topology diagrams, home networks, LAN layouts, and logical diagrams. No Visio needed.

Network diagram of a small office network setup

Network diagram of a cloud infrastructure

Network diagram of a home network configuration

Network diagram of a data center architecture

Network diagram of a campus network

What is a Network Diagram?

A network diagram is a visual representation of a computer network showing devices, connections, and how data flows between them. It maps out routers, switches, servers, firewalls, and endpoints—making complex infrastructure easy to understand.

Network diagrams help you:

Plan infrastructure — Design networks before deployment
Troubleshoot issues — Trace connectivity problems visually
Document systems — Create records for compliance and onboarding
Communicate architecture — Explain setups to stakeholders and team members

Whether you're mapping a home network, office LAN, or enterprise data center, network diagrams turn complex connections into clear visual documentation.

Types of Network Diagrams

Network Topology Diagrams

Show the physical or logical arrangement of network devices:

Star topology — All devices connect to a central hub/switch
Bus topology — Devices connect along a single cable
Ring topology — Devices form a circular data path
Mesh topology — Devices interconnect for redundancy

Logical vs Physical Diagrams

Physical diagrams show actual device locations, cable runs, and hardware
Logical diagrams show IP addressing, VLANs, subnets, and data flow

Most teams maintain both types for complete documentation.

Home & Office Network Diagrams

Document residential or small business setups—routers, access points, smart devices, and internet connections. Essential for troubleshooting and planning upgrades.

Enterprise Network Architecture

Large-scale diagrams showing data centers, DMZs, cloud connections, and security zones. Critical for IT teams managing complex infrastructure.

Common Network Diagram Examples

Home Network

Modem, router, Wi-Fi access points, and connected devices. Show how smart home devices, computers, and streaming boxes connect.

Office LAN

Switches, workstations, printers, servers, and internet gateway. Include VLANs for departmental segmentation.

Cloud Infrastructure

Hybrid setups combining on-premise servers with AWS, Azure, or GCP resources. Show VPN connections and cloud service integrations.

Data Center Architecture

Server racks, storage arrays, load balancers, and redundant connections. Include DMZ zones and firewall placements.

Describe any of these scenarios to our AI generator and get a complete network diagram instantly.

Create Network Diagrams with AI

Skip Visio and manual drawing tools. Describe your network and let AI generate a professional diagram.

How it works:

Describe your network: "Home network with fiber modem, mesh router system, 3 access points, NAS server, and 15 connected devices"
AI generates the network diagram with appropriate symbols and connections
Download in high resolution for documentation

Works for any network:

Home and homelab setups
Office LANs and WANs
Cloud and hybrid architectures
Data center layouts

Create Network Diagram with AI →

Frequently Asked Questions

One Diagram. Different Styles.

Don't settle for generic visuals. Match your diagram's aesthetic to your brand identity with our Style Picker.

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Free Network Diagram Generator

What is a Network Diagram?