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Turn your notes into a summary and mind map with AI

Upload a PDF, DOCX, PPTX, or plain notes and get a branching map of the main ideas that you can reshape to match your course.

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

How an AI summary and mind map generator helps you study

Lecture notes pile up faster than most people can reread them, and a long PDF chapter rarely fits in one sitting. DeckOwl works as an AI summary and mind map generator that reads your own material and turns it into a branching map of the main ideas.

  • A central topic built from the chapter's main claim
  • Branches for each major section or argument
  • Sub-points that hold the evidence and key definitions
  • Editable branches so you can add what your instructor stressed
Example summary structure for a textbook chapter
Main ideaState the central claim in one sentence · Check it against the chapter's opening and conclusion · Cut supporting examples
Key supporting pointsKeep the arguments that prove the main idea · Merge repeated points · Note the type of evidence used
Terms and definitionsKeep each term with its definition · Drop terms the chapter mentions only in passing · Use your own wording
ParaphrasingRead the passage, then close the book · Write from memory · Recheck against the source for accuracy
Length checkKeep the summary much shorter than the source · Write one summary per section · Reread to find gaps
Generate the full set

Editable mind maps

Move, rename, or delete branches so the map matches your course instead of a generic outline.

Works from your own files

Upload PDF, DOCX, PPTX, plain text, or a photo of a page. Photos are read with text recognition.

Study in the browser

The free plan includes 3 generations per month and browser study. Exports are available on paid plans.

How it works

Upload your material

Add a PDF, DOCX, PPTX, your notes, or a photo of a page.

Generate the map

DeckOwl builds a mind map of the main ideas and the points that support them.

Edit and explore

Reshape branches, expand the sections you need, and keep the parts your exam will cover.

A summary is easiest to study when it shows how ideas connect. A mind map keeps the central topic in the middle and places supporting points around it, so you can see which details belong to which claim. Use the map as a first pass, then test yourself on any branch you cannot explain from memory.

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Frequently asked questions

How do I write a summary that I can actually study from?

Start with the main claim in one sentence, then list the two or three points that support it. Cut examples you could recall without the page, and keep the terms your instructor repeats.

Is a mind map better than a written summary for studying?

Neither is better for every subject. Mind maps show how ideas connect, while written summaries are better for definitions and step-by-step reasoning, so many students use both.

Which exports are included in paid plans?

The free plan lets you study in the browser without exports. Plus adds unlimited generations and PDF, DOCX, Anki, and CSV export, and Pro adds QTI 2.1 and Moodle XML export.

Can I edit a generated mind map?

Yes. You can rename, move, add, or remove branches so the map matches your notes and your course.

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