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Turn your notes into a free mind map in your browser

Upload a PDF, DOCX, PPTX, or photo of your notes and get an editable, explorable mind map you can study right in the browser.

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 browser-based mind map fits your study routine

Opening a free mind map in your browser takes no installation, which makes it easy to build a visual overview of a chapter before an exam. You can start from lecture slides, a scanned handout, or your own typed notes, and the map keeps the main ideas near the top while the details sit on branches below them.

Works in any modern browser with no download
Turns PDFs, notes, and photos of pages into a map
Branches stay editable so you can reorganize as you learn
Free plan covers 3 generations per month with browser study

Example cell biology mind map branches

Cell membranePhospholipid bilayer · Embedded proteins · Selectively permeable · Cholesterol stabilizes fluidity

MitochondriaDouble membrane · Cristae increase surface area · Site of ATP production · Carries its own circular DNA

NucleusNuclear envelope · Chromatin · Nucleolus makes ribosomal RNA · Pores control transport

Endoplasmic reticulumRough ER has ribosomes · Smooth ER makes lipids · Smooth ER detoxifies drugs · Continuous with nuclear envelope

Phases of mitosisProphase · Metaphase · Anaphase · Telophase

Generate the full set

Runs in your browser

Open your mind map in any modern browser with nothing to install, so you can start studying on a school computer or a laptop.

Editable branches

Rename, move, or add branches to shape the map around how your course is organized instead of working from a fixed template.

Explorable structure

Click through main topics and sub-points to see how ideas connect, then turn the same material into flashcards or quizzes.

How it works

Add your material

Upload a PDF, DOCX, PPTX, plain text notes, or a photo of a page. Photos are read with text recognition.

Generate the map

DeckOwl builds a mind map with a main topic and branches from your material. The free plan includes 3 generations per month.

Explore and study

Edit the branches, follow each connection, and study in the browser. Exports such as PDF are available on paid plans.

The free plan lets you study the map in the browser with 3 generations per month. If you need to save your work outside DeckOwl, the Plus plan at $39/year or $7.99/month adds unlimited generations and PDF, DOCX, Anki, and CSV export. Students get 40% off with a school email, and no credit card is needed to start.

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Frequently asked questions

How many branches should a mind map for a biology chapter have?

Most chapters work well with 4 to 6 main branches, each holding 2 to 4 sub-points. If a branch grows past that, split it into two smaller branches so each one is easy to review.

How do I study from a mind map instead of just looking at it?

Cover the sub-points and try to recall each one from its main branch, then check yourself. Redraw the map from memory once a day, and mark the branches you missed so you can focus on them.

Does the free plan include mind maps?

Yes, mind maps are one of the outputs on DeckOwl, and the free plan includes 3 generations per month that you can study in the browser. Exporting your map is a paid feature.

Can I export my mind map for free?

No, exports are part of paid plans. Plus at $39/year or $7.99/month includes PDF, DOCX, Anki, and CSV export, and Pro adds QTI 2.1 and Moodle XML export.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.