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Turn your notes into an easy free mind map

Upload a PDF, document, slides, or a photo of a page and get an editable mind map you can explore branch by branch.

Create mind maps nowFree · No credit card required

Free account · 3 sets a month · Creates mind maps in seconds

How a free mind map helps you study

Students who want an easy free mind map often have a pile of lecture slides and textbook pages and no time to sketch a diagram by hand. DeckOwl reads your own material and turns it into a branching map you can edit and explore in the browser.

  • Start with the chapter headings as main branches, then add subtopics under each one.
  • Keep each branch to a single idea so you can quiz yourself on it later.
  • Redraw the map from memory once a week and compare it with the original.
  • Map one chapter at a time on the free plan so your 3 monthly generations go further.
Example respiratory system mind map branches
Upper airwayNose and nasal cavity · pharynx · larynx
Lower airwayTrachea · bronchi · bronchioles
AlveoliSite of gas exchange · thin walls for diffusion · surfactant reduces surface tension
Breathing mechanicsDiaphragm contraction · intercostal muscles · pressure differences drive airflow
Control of breathingMedulla oblongata · pons · chemoreceptors sensing CO2 and pH
Generate the full set

Editable branches

Rename, move, or add nodes after the map is generated so it matches how your course is organized.

Explore by clicking

Expand and collapse branches to see the big picture first, then drill into the details.

Built from your material

Start from a PDF, DOCX, PPTX, plain text notes, or a photo of a page read with text recognition.

How it works

Upload or paste notes

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

Generate the map

DeckOwl builds a branching outline of the main topics and their subtopics.

Edit and explore

Adjust the nodes and expand branches as you review the material.

The free plan includes 3 generations per month, which is enough to map a chapter or two. Map the most important material first, then return to the same map as the course moves on and add new branches.

Explore related topics

Frequently asked questions

What belongs on the first level of a respiratory system mind map?

Put the main regions or functions there, such as upper airway, lower airway, alveoli, breathing mechanics, and control of breathing. Each one becomes a branch you can expand.

How detailed should a respiratory system mind map be?

Aim for one idea per node with two to four sub-points under each branch. Trim anything you cannot explain in a sentence, because dense maps are harder to review.

Is the free plan really free?

Yes, you can start without a credit card and get 3 generations per month, with studying in the browser. Exports are not included on the free plan.

What do I get with a paid plan?

Plus costs $99.90 per year or $9.99 per month and adds unlimited generations plus PDF, DOCX, Anki, and CSV export. 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.