Devices included
- Router — gateway between networks.
- Switch — local segment connectivity.
- Server — application, file, database or web hosts.
- Firewall — perimeter or internal security boundary.
- Cloud / Internet — public network, ISP, or cloud region.
- PC / Workstation — end-user devices, laptops, terminals.
Who uses it
Network engineers documenting topologies, IT admins planning office rollouts, students studying for CCNA / Network+, DevOps teams sketching AWS or Azure architectures, and home-lab tinkerers mapping their stack. If you only need generic boxes and arrows, try the flowchart maker instead.
Ready to draw?
No signup. Opens instantly in your browser.
How to make a network diagram
- Open the editor and click the Network Diagram icon in the left mode switcher.
- Pick a device from the top toolbar (router, switch, server, firewall, cloud, PC).
- Click the canvas to place it. Double-click any device to rename it (e.g. "Core Switch", "DMZ Firewall").
- Use the Connect tool to draw links between devices.
- Export to PNG for documentation, Confluence, runbooks, or slide decks.
Why FlowSimp over heavyweight tools
Lucidchart, Visio and draw.io all have network stencils, but they require accounts, paid tiers, or hunting through icon libraries. FlowSimp loads in under a second, has the six shapes 90% of diagrams actually use, and exports a clean PNG you can drop straight into a ticket or wiki page. See the full comparison: FlowSimp vs Lucidchart.