Turn your notes into a mind map app you can edit and explore
Upload a PDF, DOCX, slide deck, or a photo of your notes. DeckOwl builds an editable mind map you can expand, rearrange, and explore branch by branch.
Mind maps for topic-based revision
Many students who study from a teacher's lectures want a mind map app that turns long notes into clear topic branches before an exam. A map shows how the parts of a chapter connect, which is harder to see in a linear page of notes.
- Start from your own PDF, notes, or slides instead of a generic template.
- Edit any node so the map reflects your teacher's terminology.
- Collapse branches to test yourself on one topic at a time.
- Turn the same material into flashcards or quizzes when you are ready to practice recall.
Editable branches
Rename, move, or add nodes so the map matches how you think about the material.
Explore by level
Collapse and expand branches to focus on one topic at a time without losing the big picture.
Built from your files
Works from PDFs, Word files, PowerPoint decks, plain notes, and photos of pages read with text recognition.
How it works
Upload your material
Add a PDF, DOCX, PPTX, text file, or photo of your notes.
Generate the map
DeckOwl organizes the content into main branches and sub-points you can review.
Edit and explore
Adjust the layout, expand the branches you need, and study from the map in your browser.
DeckOwl is an independent AI study tool and is not Madan Sir's app or affiliated with him. It works on whatever material you already have, so you can map your own lecture notes, textbook chapters, or slides.
Start with one chapter, check that the main branches match the lesson, and then fill in the sub-points. Editing the map as you go tends to reveal gaps in your understanding.
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Frequently asked questions
How do I make a mind map from a textbook chapter?
Start with the chapter's headings as main branches, then add the key terms and definitions under each one. Keep each sub-point short so you can recall it without reading the whole page.
How many branches should a mind map have?
Most chapters work well with 4 to 7 main branches, each with 2 to 4 sub-points. If a branch grows beyond that, split it into its own topic map.
Is DeckOwl free to use?
Yes, the free plan includes 3 generations per month and lets you study in the browser. Exports to PDF, DOCX, Anki, and CSV require the Plus plan.
Is DeckOwl Madan Sir's app?
No. DeckOwl is an independent AI study tool and is not affiliated with Madan Sir.
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