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Build a mind map online from your own notes

Upload a PDF, DOCX, PPTX, text file, or photo of a page and get an editable mind map you can explore branch by branch.

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

Why a mind map helps you study

A good mind map shows how ideas connect, which is harder to see in a linear set of notes. You can build a mind map online from your own PDF or lecture notes in a few minutes, then adjust the branches until they match how the material is organized.

  • Use one branch per major concept, not one per sentence.
  • Write sub-points as short terms or phrases you can recall.
  • Link related branches with cross-references when two ideas depend on each other.
  • Redraw the map from memory once a day to check what stuck.
Example cell biology mind map branches
Cell membranePhospholipid bilayer · Selectively permeable · Embedded proteins · Passive vs active transport
MitochondriaSite of cellular respiration · Double membrane · Produces ATP · Has its own DNA
NucleusHolds chromosomal DNA · Nuclear envelope with pores · Nucleolus makes ribosomal RNA
Endoplasmic reticulumRough ER studded with ribosomes · Smooth ER makes lipids · Both connect to the nuclear envelope
Golgi apparatusModifies and sorts proteins · Packages molecules into vesicles · Ships them to destinations
Generate the full set

Editable branches

Rename, reorder, or add sub-points to any branch so the map matches how you think about the material.

Explorable structure

Collapse and expand sections to focus on one area at a time instead of scanning a crowded page.

Built from your files

Upload PDFs, DOCX, PPTX, plain text, or a photo of a page, and the map is generated from that material.

How it works

Upload your material

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

Review the draft map

Check the main branches and remove anything that is not central to the topic.

Edit and study

Adjust branches in the browser, then study from the map or turn it into flashcards.

Start with the central topic, then add a branch for each major section of the source. Keep sub-points short, since a branch written as a full sentence is hard to recall during a practice session.

Explore related topics

Frequently asked questions

How do I structure a mind map for a biology chapter?

Start with the chapter title in the center, then add one branch per major section or concept. Keep each branch to a few short sub-points so you can recall them without reading the whole text.

What belongs on a mind map and what should stay in the text?

Put key terms, categories, and cause-and-effect links on the map, and leave out full sentences and long definitions. Review the map from memory first, then check the source to fill gaps.

Is it free to build a mind map online with DeckOwl?

Yes, the free plan includes 3 generations per month and lets you study in the browser. Exporting to PDF, DOCX, Anki, or CSV requires the Plus plan at $39/year or $7.99/month.

Can I edit the mind map after it is generated?

Yes, the map is editable, so you can rename branches, add sub-points, or remove what you do not need. No credit card is needed to start, and students with a school email get 40% off.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.