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Turn your notes into a quick mind map with AI

Upload a PDF, Word file, slide deck or photo of a page. DeckOwl builds a mind map you can edit, rearrange and click through branch by branch.

Create mind maps nowFree · No credit card required

Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

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

Why a quick mind map helps when you are short on time

When a chapter runs twelve pages and the exam is tomorrow, a quick mind map generator gives you the outline first. Seeing how the main topics connect makes it easier to decide what to review and in what order.

Turns long PDFs and notes into a branch-and-sub-point outline
Lets you edit the structure so it matches your course
Works from typed notes or photos of pages
Pairs well with flashcards and quizzes for the details inside each branch

Example respiratory system mind map branches

Upper airwayNasal cavity · pharynx · larynx

Lower airwayTrachea · bronchi · bronchioles · alveoli

Gas exchangeAlveoli · diffusion of oxygen and carbon dioxide · pulmonary capillaries

Muscles of breathingDiaphragm · external intercostals · accessory muscles during forced breathing

Control of breathingMedulla oblongata · pons · chemoreceptors that detect carbon dioxide and pH

Generate the full set

Reads your own material

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

Editable structure

Rename branches, move sub-points or delete what you do not need so the map matches how your course organizes the topic.

Explore at your own pace

Expand and collapse branches to focus on one section at a time instead of scanning a wall of text.

How it works

Upload your notes

Add a PDF, DOCX, PPTX, text file or image of your notes. No credit card is needed to start.

Generate the map

DeckOwl organizes the main ideas into branches and sub-points in one pass.

Edit and explore

Adjust the layout, then move through the branches to check what you understand and what still needs review.

A mind map also shows gaps. If one branch has three sub-points and another has none, you know where your notes are thin. You can edit the map, add the missing details from the text, and keep the version you will study from.

Use the map as a starting point rather than a finished answer. Work through each branch from memory, then open the source material to check what you missed.

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Frequently asked questions

How do I study a topic like the respiratory system with a mind map?

Start with the main branches, such as upper airway, lower airway, gas exchange and breathing control. Close the map and try to name the sub-points for each branch, then check your answers against the source notes.

What should go on the main branches of a respiratory system mind map?

Common main branches are the airways, the lungs and alveoli, gas exchange, the muscles of breathing, and control of breathing. Sub-points under each one should name specific structures or processes from your course material.

Is there a free plan?

Yes. The free plan includes 3 generations per month and lets you study in the browser, but it does not include exports.

Do I need a paid plan to use the mind map generator?

Not to try it. Paid plans add unlimited generations and file exports, and students get 40% off with a school email.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.