A free mind map maker that turns your PDF into a map
Upload a PDF, slides, or notes and get a mind map you can edit and explore branch by branch. Start free with no credit card.
Why a mind map helps you see how a topic fits together
Most students start a study session with a blank page and a forty-slide lecture, and a free mind map maker can turn that material into a branching outline in one pass. DeckOwl reads PDF, DOCX, PPTX, plain text, and photos of pages, then builds a map with a central topic and linked branches you can edit and explore.
- Start with the central idea, then add one main branch for each major section of the material.
- Keep each branch to two to four sub-points so you can recall it without rereading.
- Check every branch against the original text and correct any recognition errors from photos.
- Turn the branches you forget most often into flashcards or quiz questions.
Built from your own material
Upload PDF, DOCX, PPTX, plain text, or photos of pages, and the map is drawn from what you actually studied.
Editable branches
Rename, reorder, or remove any node so the map matches how your course organizes the topic.
Explore at your own pace
Expand and collapse branches to focus on one concept at a time instead of scanning a wall of notes.
How it works
Upload your notes
Add a PDF, slide deck, document, or photo of a page. Text recognition reads images too.
Generate the map
DeckOwl builds a central topic with main branches and sub-points drawn from your material.
Edit and study
Adjust the branches, then study the map in your browser or turn weak spots into flashcards and quizzes.
The free plan includes 3 generations per month, and you can study the map right in the browser. Exports to PDF, DOCX, Anki, and CSV are part of Plus at $39/year or $7.99/month, and students get 40% off with a school email. No credit card is needed to start.
Mind maps work best when you check each branch against the source. Use the map to see how ideas connect, then test yourself with flashcards or a quiz built from the same notes.
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Frequently asked questions
How many branches should a mind map have for one chapter?
Most chapters work well with four to seven main branches, each holding two to four sub-points. A map with too many branches becomes hard to scan and review.
What is the best way to study from a mind map?
Cover one branch at a time and say its sub-points from memory, then check the source. Turn the branches you miss into flashcards or quiz questions.
Is this free mind map maker really free?
Yes, the free plan includes 3 generations per month and lets you study maps in the browser. Exporting to PDF, DOCX, Anki, or CSV requires Plus at $39/year or $7.99/month.
Can I make a mind map from a photo of my notes?
Yes, photos of pages are read with text recognition, and PDF, DOCX, PPTX, and plain text also work. Check the generated text once for recognition errors.
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