Draw a mind map diagram from your notes, free in your browser
DeckOwl reads your PDF, DOCX, PPTX, text notes, or photos of pages and builds an editable mind map you can explore branch by branch.
When a free online mind map diagram is enough
If you need to draw a mind map diagram online free, start from the material you already have instead of building a blank map by hand. A lecture PDF or a page of messy notes usually contains a central topic, several main themes, and supporting details, which is exactly the structure a mind map needs.
- Work from your own lecture slides or readings rather than a generic template
- Keep one central idea per map so each branch stays readable
- Split long chapters into several maps instead of one crowded diagram
- Review the map branch by branch, then test yourself on the same material
Starts from your own material
Upload a PDF, Word file, slide deck, or photo of a page and get a mind map built from that content, not generic filler.
Editable and explorable
Expand or collapse branches, reword nodes, and reorganize the diagram so it matches how you think about the topic.
Turns maps into practice
Use the same material to generate flashcards with spaced repetition or quizzes with explanations when you are ready to test yourself.
How it works
Upload your notes
Add a PDF, DOCX, PPTX, plain text file, or a photo of your page. No credit card is needed to start.
Generate the mind map
DeckOwl identifies the main idea and its branches, then lays out a diagram you can open in your browser.
Edit and study it
Rename nodes, move branches, and click through the map to review each idea in order.
The free plan gives you 3 generations per month and lets you study in the browser. Paid plans add unlimited generations and PDF, DOCX, Anki, and CSV export when you need the map or cards outside DeckOwl.
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Frequently asked questions
How many branches should a study mind map have?
Aim for five to seven main branches around one central idea, with two to four sub-points under each. If a branch keeps growing, split it into its own map.
What makes a mind map easier to review later?
Use short labels of one to four words and keep the wording consistent with your course terms. Reviewing the map from the center outward helps you recall how ideas connect.
Is there a free plan?
Yes, the free plan includes 3 generations per month and studying in the browser. No credit card is needed to start.
Can I export my mind map for free?
Exports are a paid feature, so the free plan keeps your maps in the browser. Plus adds PDF, DOCX, Anki, and CSV export.
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