FlowSimp is a free online flowchart maker and whiteboard. Paste text or Mermaid to generate a flowchart, or draw one yourself. No signup is required.
Click a shape tool, then the canvas
Or double-click the canvas
Click a device, then the canvas
Or double-click the canvas
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.