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Use a mind map app to turn your PDF into a map you can explore

Upload a PDF, DOCX, slides, text notes, or a photo of a page, and get a mind map you can edit and explore branch by branch.

Create mind maps nowFree · No credit card required

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

Getting a usable mind map from your own material

Most people start a mind map app by uploading the lecture slides or reading notes they already have, not by drawing branches from scratch.

  • Use a clear source file, such as a text-based PDF, so the main topics are easy to detect.
  • Keep the first map to one chapter or lecture so the branches stay readable.
  • Rename any branch that uses your instructor's terms instead of generic wording.
  • Collapse finished branches so the map shows only the topics you still need to review.
Example cell biology mind map branches
Cell membranePhospholipid bilayer · Embedded proteins · Cholesterol · Selective permeability
MitosisProphase · Metaphase · Anaphase · Telophase
MitochondriaSite of cellular respiration · Double membrane · Produces ATP · Own circular DNA
Endoplasmic reticulumRough ER · Smooth ER · Protein folding and transport · Lipid synthesis
OsmosisWater movement across membrane · Hypotonic · Hypertonic · Isotonic
Generate the full set

Upload any source

Start from PDFs, DOCX, PPTX, plain text notes, or photos of pages read with text recognition.

Editable branches

Rename, move, or trim branches so the map matches how your course organizes the material.

Explore at your pace

Open a branch to see its sub-points, then collapse it when you are ready to move to the next topic.

How it works

Upload your material

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

Generate the map

DeckOwl builds a mind map with main branches and sub-points drawn from your content.

Edit and explore

Rename or rearrange branches, then click through each one to review the ideas.

Once the map is generated, the useful part is editing it. Rename branches to match your syllabus, drop sub-points you do not need, and open each branch to check that the main ideas are right before you rely on them.

The Free plan includes 3 generations per month, which is enough to test the workflow on one chapter before you decide whether you need more.

Explore related topics

Frequently asked questions

How many branches should a mind map have for one lecture?

Most lectures work best with 4 to 7 main branches, each with 2 to 4 sub-points, so the map stays readable at a glance.

How do I study from a mind map instead of rereading notes?

Cover the sub-points of one branch, try to recall them from the main topic, then check the map. Repeat for each branch before moving on.

Is there a free plan?

Yes. The Free plan includes 3 generations per month and study in the browser, and no credit card is needed to start.

Do I need a paid plan to get exports?

Yes. Plus at $99.90/year or $9.99/month adds unlimited generations and PDF and DOCX export, 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.