Last updated November 2, 2026
Internet, an edge firewall, a core router, an access switch, an app server, and workstations. It uses the network shapes, not the flowchart toolbar. FlowSimp is completely free to use — no sign-up required.
Use this templateReady to draw?
No signup. Opens instantly in your browser.
Use it for a simple office or lab sketch. It is not a full stencil library.
Shapes, arrows, decisions — diagram anything.
Paste an outline or Mermaid and generate the diagram.
Convert flowchart and graph syntax into an editable diagram.
Compare FlowSimp with Visio, Lucidchart, Miro, and others.
Map who does what across a workflow.
Freehand pen, text, colors. Stylus-ready.
Standard PFD symbols for workflows.
Branch ideas around a central topic.
Routers, switches, servers, firewalls, cloud.