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Turn your notes into an editable online mind map

Upload a PDF, DOCX, or photo of your notes and get a mind map you can edit and explore. Start free with no credit card.

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

Why a mind map helps when you study from notes

Need an online mind map for a chapter you read last night? Writing one by hand takes time, and a long set of notes can hide how the ideas connect. An online mind map puts the main topic in the center with branches for each subtopic, so you see the structure before you memorize details.

  • Check the map against your source before a test and fix any branch that drifts.
  • Start with the top-level branches, then expand one at a time to avoid overload.
  • Redraw the map from memory once a day to test recall, not just recognition.
  • Turn a weak branch into a flashcard or quiz question so it gets reviewed later.
Example cell biology mind map branches
Cell membranePhospholipid bilayer · selective permeability · embedded transport proteins
MitochondriaSite of cellular respiration · double membrane · produces most of the cell's ATP
NucleusStores DNA · nuclear envelope controls passage · nucleolus assembles ribosome subunits
Endoplasmic reticulumRough ER has ribosomes · smooth ER makes lipids · both connect to the nuclear envelope
Golgi apparatusModifies and sorts proteins · packages them into vesicles · ships them to their destination
Generate the full set

Upload any source

PDF, DOCX, PPTX, plain text notes, and photos of pages all work. Images are read with text recognition.

Editable branches

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

Explore as you study

Expand and collapse sections to review one topic at a time instead of scanning a wall of text.

How it works

Add your material

Upload a PDF, DOCX, PPTX, notes, or a photo of a page.

Generate the map

DeckOwl builds a branched outline from the main ideas in your material.

Edit and review

Adjust branches, then study the map or turn the same content into flashcards or a quiz.

DeckOwl starts from your own material, so the branches reflect what your teacher or textbook actually covered. You can edit any branch, merge overlapping ideas, or add a missing one, which keeps the map accurate rather than generic.

Explore related topics

Frequently asked questions

How many main branches should a mind map have?

Most study maps work well with 4 to 7 main branches under one central topic. If you need more, group related branches under a shared heading so each level stays easy to scan.

How can I use a mind map to study for an exam?

Cover the branches and try to name each subtopic and its key points from memory. Then check the map and redraw any part you missed.

Can I make a mind map for free?

Yes. The free plan includes 3 generations per month and studying in the browser. Plus, at $99.90/year or $9.99/month, adds unlimited generations.

Which file types can I upload?

You can upload PDF, DOCX, PPTX, plain text notes, and images of pages, which are read with text recognition. PDF and DOCX export are part of the Plus plan.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.