Free online tool

Automatic Flow Layout

Arrange connected shapes into a clear flow. Choose a direction and spacing, adjust positions and download the diagram.

Works on your deviceNo account neededGraph JSON / SVG / PNG / CSVOpen workspace ↓

How do I automatically arrange a directed graph?

Open or edit a graph, choose the layered layout, flow direction and spacing, then run the layout. The worker calculates node positions and routes connections. Review the result, adjust positions by dragging and export the diagram or node-coordinate CSV.

Make the connections.

On your device

Diagram title

Import graph JSON

Use directed: true or false, a nodes array with unique IDs, and edges with source and target IDs.

{
  "directed": true,
  "nodes": [
    {
      "id": "start",
      "label": "New request",
      "type": "start",
      "x": 140,
      "y": 170
    },
    {
      "id": "review",
      "label": "Review details",
      "type": "process",
      "x": 400,
      "y": 170
    },
    {
      "id": "ready",
      "label": "Ready to proceed?",
      "type": "decision",
      "x": 660,
      "y": 170
    },
    {
      "id": "done",
      "label": "Book appointment",
      "type": "end",
      "x": 940,
      "y": 110
    },
    {
      "id": "followup",
      "label": "Ask for details",
      "type": "process",
      "x": 940,
      "y": 310
    }
  ],
  "edges": [
    {
      "id": "request",
      "source": "start",
      "target": "review",
      "weight": 1
    },
    {
      "id": "check",
      "source": "review",
      "target": "ready",
      "weight": 1
    },
    {
      "id": "yes",
      "source": "ready",
      "target": "done",
      "label": "Yes",
      "weight": 1
    },
    {
      "id": "no",
      "source": "ready",
      "target": "followup",
      "label": "No",
      "weight": 2
    }
  ]
}

Layout algorithmFlow directionNode spacing

Directed connectionsShow edge weights5 nodes · 4 connections

Edit nodes & connections ↓

Drag a node to move it. Drag blank space to pan.

Keyboard: focus a node and use arrow keys to move it; hold Shift for larger steps. Labels and notes are available in the editor below.

Nodes & notes

Search nodes, notes or tagsChoose node (5 matches)

Deleting a node also deletes its connections. Undo restores both. Keep at least one node.

Connections

Three simple steps

How to use Automatic Flow Layout

Open a graph project or edit nodes and connections in the workspace.
Explore the graph and choose the relevant analysis or layout controls.
Export the diagram, data tables or an editable project.

Common questions

Good to know

Understand the result.
Keep the original.

Is this tool free, and are my files uploaded?

This tool is free with no account required. The work happens in your browser. Your input and files are not sent to a processing server.

What are the limits and details?

Graph IDs must be unique and every edge must refer to an existing node. Labels, notes and tags are plain text. Project files save graph data and node positions locally; automatic cloud storage or collaboration is not included.

Limits: 500 nodes, 2,000 edges and 500,000 project characters. Expensive operations run in a cancellable 30-second browser worker.

How do I automatically arrange a directed graph?

Make the connections.

Nodes & notes

Connections

How to use Automatic Flow Layout

Good to know

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