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Turn your study notes into an editable AI mind map

Upload a PDF, DOCX, PPTX, plain 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

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

How a mind map app helps you study

Students who follow Justin Sung's learning advice often want a Justin Sung mind map app style workflow built from their own readings, and that is the gap this tool fills. DeckOwl is a separate product and is not affiliated with Justin Sung.

Start from your own textbook chapter, lecture slides, or notes instead of a generic template.
Edit nodes and branches so the map reflects your course, not just the AI's first pass.
Expand or collapse branches to focus on weak spots without losing the big picture.
Turn the same material into flashcards or quizzes once the structure is clear.

Example mind map branches for study topics

Cell biologyOrganelles · Membrane transport · Cell cycle

PhotosynthesisLight-dependent reactions · Calvin cycle · Chloroplast structure

The French RevolutionCauses: fiscal crisis · Enlightenment ideas · Phases: Estates-General to Terror · Outcome: rise of Napoleon

Contract lawOffer and acceptance · Consideration · Breach and remedies

Supply and demandDemand curve · Supply curve · Equilibrium price · Shifts in each curve

Generate the full set

Built from your material

Drop in a PDF, DOCX, PPTX, pasted notes, or a photo of a page. Text recognition reads the photo so the map starts from what you actually have.

Editable branches

Rename nodes, move branches, and add your own connections. The map is a starting point you can shape to match how you think about the topic.

Explore at your own pace

Collapse branches you already know and expand the ones you are still fuzzy on. The map shows the structure of a topic without burying you in detail.

How it works

Upload your notes

Add a PDF, DOCX, PPTX, text notes, or a photo of a page to start a new mind map.

Review the AI map

Check the main branches and sub-points, then edit anything that is missing or off.

Study from the map

Explore the branches, then turn the same material into flashcards or a quiz when you are ready to practice.

DeckOwl reads your PDF, DOCX, PPTX, notes, or a photo of a page and builds a mind map of the main ideas as branches. You can edit any node, rearrange branches, and expand only the parts you need to review. Mind maps sit alongside flashcards with spaced repetition and quizzes, so the same material can be practiced more than one way.

Explore related topics

Justin Sung's Mind Map App, Explained

Which app Justin Sung uses, plus an AI mind map generator for your own notes.

AI Mind Map Generator App

Turn PDFs and notes into an editable mind map. Includes a sample on US government branches.

AI Mind Map Maker App

Upload PDFs or notes and get an editable, explorable AI mind map.

AI Visual Mind Map App

Upload notes or PDFs and get an editable visual mind map you can explore with AI.

Free mind map app for notes and PDFs

Turn PDFs and notes into an editable mind map. Start free, 3 generations a month.

Free mind mapping app for students

Turn lecture notes and PDFs into an editable mind map, free to start, with no credit card needed.

Best Mind Map App for Apple Users

Turn your PDFs and notes into an editable, explorable mind map with AI.

Best Mind Map App for Apple Pencil

Build an editable mind map from your PDFs and notes to review on iPad.

Frequently asked questions

How do I build a mind map for a dense textbook chapter?

Start with the chapter's main headings as first-level branches, then add the key terms and examples under each one. Keep each node to a few words so the map stays readable when you review it.

What should a good study mind map include?

Include the central topic, the major concepts as branches, and the supporting facts or examples beneath them. Labeling the relationships between branches makes the map far more useful for explaining a topic.

Is DeckOwl affiliated with Justin Sung?

No, DeckOwl is a separate AI study tool and is not affiliated with or endorsed by Justin Sung. It is built for anyone who wants an AI-made mind map from their own material.

What is included in the free and paid plans?

The free plan includes 3 generations per month and studying in the browser, but no exports. Plus costs $39/year or $7.99/month and adds unlimited generations along with PDF, DOCX, Anki, and CSV export.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.