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Turn your notes into an editable mind map online

Upload a PDF, Word file, slide deck, or photos of your notes. DeckOwl builds a mind map you can rearrange, expand, and explore 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 build a mind map from your own material

Online mind map making is faster when the software handles the first draft. Instead of spending an hour placing boxes and drawing lines, you start with the main ideas already grouped under sensible headings.

Start from a PDF, DOCX, PPTX, text file, or photo of notes.
Edit node names, move branches, and delete anything irrelevant.
Expand and collapse sections to study one part of the topic at a time.
Free plan includes 3 generations per month and browser study.

Example immune system mind map branches

Innate immunitySkin and mucous membranes · neutrophils and macrophages · complement proteins · inflammation

Adaptive immunityB cells and T cells · antigen recognition · immunological memory

B cellsProduce antibodies · differentiate into plasma cells · memory B cells persist after infection

T cellsHelper T cells (CD4) coordinate the response · cytotoxic T cells (CD8) kill infected cells · regulatory T cells limit overreaction

VaccinationExposes the immune system to an antigen · triggers memory cells · produces a faster response on later exposure

Generate the full set

Starts from your own material

Upload PDF, DOCX, PPTX, plain text, or photos of pages. The map is built from what you already have, not generic filler.

Editable branches

Rename, move, or delete nodes after the first draft so the map matches how your course organizes the topic.

Explore at your pace

Expand and collapse branches to focus on one section at a time, then turn the same material into flashcards or a quiz.

How it works

Upload your notes

Add a file or paste text. Scanned pages are read with text recognition.

Review the first draft

DeckOwl lays out the main ideas as branches with sub-points. Check that the structure reflects your lecture.

Edit and study

Adjust nodes, then explore the map in your browser or export it when you upgrade to Plus.

A mind map is most useful when it reflects your course, not a generic template. Uploading your lecture slides or notes keeps the terms, emphasis, and structure tied to what your instructor actually covered.

Because the map is editable, you can correct anything the first pass got wrong, merge overlapping branches, and add your own examples. The result is a study tool you shaped, not just a picture you received.

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Frequently asked questions

How do mind maps help when learning the immune system?

They show how innate and adaptive responses connect, which is easier to remember than separate lists. Branching from a central idea also makes it clear which cells and molecules belong to each defense layer.

How many branches should a study mind map have?

Most useful maps have 4 to 7 main branches, each with 2 to 4 sub-points. If a branch grows much larger, split it into its own map so it stays readable.

Can I edit the mind map after DeckOwl creates it?

Yes. You can rename, move, add, and delete nodes to match your course. Your edits stay in the map as you study.

Is there a free plan, and what do exports cost?

The free plan includes 3 generations per month and browser study. Exporting to PDF, DOCX, Anki, or CSV is part of the Plus plan at $39/year or $7.99/month.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.