Mind Map MakerNEW
Build a mind map from typed nodes and export it as an image
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AllFreeTool is a free online mind map builder where you type a central topic, add branches and sub-nodes, and watch the diagram lay itself out as a tree. The layout can be horizontal or vertical, and the result can be exported as a PNG image or as a JSON file that you can import again later. It runs entirely in your browser, so your notes never leave your device.
It suits brainstorming a project, outlining a lecture, organising research, mapping a process, or turning a messy set of thoughts into something you can share. The JSON export means you can keep a structure across sessions, edit it on another machine, or hand the outline to someone else as a file.
Why use Mind Map Maker on AllFreeTool?
Tree Structure
Build a central topic with branches and sub-nodes, and rename or delete any of them.
Two Layouts
Switch between a horizontal tree and a vertical one to suit the shape of your notes.
PNG Export
Export the finished map as an image you can drop into a document or a slide.
JSON Save and Load
Export the structure as JSON and import it back to continue where you left off.
How to use Mind Map Maker
Name the Topic
Enter the central topic that everything else will branch from.
Add Branches
Create branches and sub-nodes, and rename or delete entries as the outline develops.
Export
Download the map as a PNG image or save the structure as JSON for later.
Common questions
How do I build up the map?＋
You start with the central topic, add branches from it, and then add sub-nodes under a branch. Every entry can be renamed or deleted, and the diagram re-lays itself automatically as the structure changes, so you never have to position anything by hand.
Can I come back to a map later?＋
Yes, by exporting the structure as a JSON file and importing it again whenever you want. The import restores the topic, the branches and the sub-nodes exactly as they were, which is also a convenient way to share a structure as a file.
What format does the PNG export use?＋
The export renders the current diagram as an image file you can download and use anywhere, which is the convenient option for pasting into a slide or a document. The JSON export is the better choice when you want to keep editing rather than share a picture.
Is my map uploaded to a server?＋
No. The tree is edited, laid out and drawn locally in your browser, and no request is made at any point. Your notes are never transmitted or stored, so sensitive planning material stays on your own machine.