Free online tool

Knowledge Map Editor

Build a map of ideas and how they connect. Add notes and tags, search your map and save a project file.

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

How can I keep notes connected as a knowledge map?

Create a node for each concept, add notes and tags, and label the relationships between concepts. Search the map or explore a node’s neighborhood to review related ideas. Save graph JSON to retain your notes, connections and layout for later editing.

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": false,
  "nodes": [
    {
      "id": "A",
      "label": "Village",
      "tags": [
        "home"
      ],
      "notes": "Starting point",
      "x": 140,
      "y": 200
    },
    {
      "id": "B",
      "label": "Forest",
      "tags": [
        "outdoors"
      ],
      "x": 380,
      "y": 90
    },
    {
      "id": "C",
      "label": "Bridge",
      "x": 380,
      "y": 310
    },
    {
      "id": "D",
      "label": "Castle",
      "x": 660,
      "y": 200
    },
    {
      "id": "E",
      "label": "Harbour",
      "x": 900,
      "y": 310
    }
  ],
  "edges": [
    {
      "id": "ab",
      "source": "A",
      "target": "B",
      "weight": 2
    },
    {
      "id": "ac",
      "source": "A",
      "target": "C",
      "weight": 6
    },
    {
      "id": "bc",
      "source": "B",
      "target": "C",
      "weight": 1
    },
    {
      "id": "bd",
      "source": "B",
      "target": "D",
      "weight": 7
    },
    {
      "id": "cd",
      "source": "C",
      "target": "D",
      "weight": 2
    },
    {
      "id": "de",
      "source": "D",
      "target": "E",
      "weight": 3
    }
  ]
}

Layout algorithmFlow directionNode spacing

Directed connectionsShow edge weights5 nodes · 6 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.

Explore this neighborhood

Highlighted: 3 nodes and 3 connections around Village.

Neighborhood hopsNeighborhood direction

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 Knowledge Map Editor

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 can I keep notes connected as a knowledge map?

Make the connections.

Explore this neighborhood

Nodes & notes

Connections

How to use Knowledge Map Editor

Good to know

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