Turn your notes into a Justin Sung-style mind map
Upload a PDF, DOCX, PPTX, text file, or photo of a page. DeckOwl builds a mind map of the main ideas, which you can edit and explore branch by branch.
Why a branching map suits concept-based study
Dense lecture notes often read like a flat list, which hides how one idea depends on another. A Justin Sung-style mind map puts the central idea in the middle and places related concepts around it, so you can see the connections before you memorize the details.
- Start from the central topic and add only the main ideas as first-level branches.
- Write each sub-point as a short phrase that names a fact, process, or example.
- Check that every branch connects back to the center, and redraw any that do not.
- Turn the branches you find hardest into flashcards or quiz questions and review them over time.
Branches from your own material
The map is built from the content you upload, so the main ideas and supporting details come from your lecture slides, readings, or notes.
Editable and explorable
Rename branches, add ideas you missed, and reorganize the layout as your understanding changes, then follow each branch to its details.
Study tools from the same content
Turn key branches into flashcards with spaced repetition or into quiz questions that check whether you can explain how the ideas connect.
How it works
Upload your notes
Add a PDF, DOCX, PPTX, plain text file, or a photo of a page. Photos are read with text recognition.
Generate the map
DeckOwl pulls out the central topic, the main branches, and the supporting points under each one.
Explore and edit
Adjust the branches so the map matches how you think about the material, then study from it in the browser.
Justin Sung is known as a learning coach who encourages students to understand why material works, not just recall it word for word. A mind map supports that goal because each branch asks you to state a relationship, such as cause and effect, or a general rule and its exceptions.
DeckOwl generates the first draft from your own files, so you spend your time checking and restructuring the map rather than building it from a blank page. The map stays editable, so it can grow as you learn more.
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Frequently asked questions
How do I build a mind map from a lecture?
Start with the central topic, then add the main ideas as first-level branches and the supporting details as smaller branches. Keep each branch short, then check that you can explain how the branches connect to one another.
Is a mind map better than flashcards for understanding a topic?
Mind maps are better for seeing relationships between concepts, while flashcards are better for recalling specific facts. Many students map the material first and then turn the hardest branches into cards.
Can I edit the mind map after DeckOwl creates it?
Yes, the mind map is editable and explorable, so you can rename branches, add missing ideas, and reorganize the layout as your understanding grows.
Do I need to pay to export my study materials?
The free plan lets you study in the browser. Exports such as PDF, DOCX, Anki, and CSV are part of the Plus plan, which costs $39/year or $7.99/month.
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