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Turn your own notes into a mind map, not a generic template

Upload a PDF, DOCX, PPTX, plain notes, or a photo of a page. DeckOwl builds an editable mind map from your material that you can open up and explore branch by branch.

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Free · First set needs no signup · Creates mind maps in seconds

Why a custom mind map beats a fixed template

A mind map website template gives you someone else's layout with placeholder boxes, but the branches that help you study have to come from your own lecture slides and readings.

  • Start from your own course material instead of a blank or generic layout
  • Edit branches and sub-points so the map reflects how your instructor teaches the topic
  • Explore the map branch by branch to find gaps before an exam
  • Move from the map to flashcards or quizzes on the same material
Example mind map branches for probability basics
Sample spaceAll possible outcomes of an experiment · Written as S · Coin flip: {H, T}
EventsA subset of the sample space · Happens when the outcome is in that subset · A simple event has exactly one outcome
Addition ruleP(A or B) = P(A) + P(B) - P(A and B) · Mutually exclusive events drop the last term · Used for either-or questions
Conditional probabilityP(A given B) = P(A and B) / P(B) · Requires P(B) greater than 0 · Updates the chance of A after new information
Independent eventsP(A and B) = P(A) × P(B) · Knowing A tells you nothing about B · Typical examples are separate coin flips and dice rolls
Generate the full set

Built from your material

Branches come from your own lecture slides, textbook chapters, or notes, so the map matches the course you are actually taking.

Editable and explorable

Rename branches, move ideas around, and expand sub-points as you learn. The map stays yours to adjust.

Pairs with flashcards and quizzes

Turn the same material into spaced repetition flashcards and quizzes with explanations when you are ready to practice.

How it works

Upload your source

Add a PDF, DOCX, PPTX, text notes, or photos of pages. Images are read with text recognition.

Generate the mind map

DeckOwl organizes the material into a main topic with branches and sub-points.

Edit and explore

Adjust the layout, then click through branches to check what you understand and what needs another look.

DeckOwl reads your PDF, DOCX, PPTX, notes, or photographed pages and produces an editable mind map with main branches and sub-points drawn from that material. You can reshape it as your understanding changes.

The Free plan gives you 3 generations per month with browser study and no credit card needed to start. Students get 40% off with a school email.

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Frequently asked questions

How do I study probability basics using a mind map?

Start with a central node for probability and branch out to sample spaces, events, and the addition and multiplication rules. Then test yourself on each branch until you can explain it without looking.

What is the difference between independent and mutually exclusive events?

Independent events do not affect each other, so P(A and B) equals P(A) times P(B). Mutually exclusive events cannot both happen, so P(A and B) equals zero.

Is there a free plan for DeckOwl?

Yes. The Free plan includes 3 generations per month and studying in the browser, and you do not need a credit card to start.

Can I export my study material?

File exports such as PDF, DOCX, Anki, and CSV are part of the Plus plan, which costs $39/year or $7.99/month. Free plan material is studied in the browser.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.