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Turn your PDF or notes into a free mind map on Windows

Upload a PDF, DOCX, or photo of your notes and get an editable, explorable mind map. It runs in your browser on Windows, and the free plan needs no credit card.

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

What to expect from a free mind map app on Windows

Many students on Windows want a free mind map app that does more than drop boxes on a blank canvas. DeckOwl reads your lecture notes or a PDF and drafts the branches for you, so your time goes into correcting and extending the map rather than building it from scratch.

Works in any modern browser on Windows, with no download
Free plan includes 3 generations per month
Mind maps stay editable so you can refine them as your course changes
Upgrade to Plus when you need PDF or DOCX exports

Example mind map branches for a biology cell structure unit

Cell membranePhospholipid bilayer · Selective permeability · Passive and active transport

MitochondriaSite of cellular respiration · Produces ATP · Has its own circular DNA

NucleusStores genetic material · Nuclear envelope with pores · Site of DNA replication and transcription

Endoplasmic reticulumRough ER makes proteins for export · Smooth ER makes lipids · Helps detoxify some drugs

Golgi apparatusModifies and sorts proteins · Packages them into vesicles · Ships materials around the cell

Generate the full set

Starts from your material

Upload a PDF, DOCX, PPTX, plain text, or a photo of a page, and the mind map is built from what you actually wrote or were assigned.

Editable and explorable

Rearrange branches, add your own sub-points, and click through the map to see how ideas connect before you study.

Works in your browser

Nothing to install on Windows. Open DeckOwl in Edge, Chrome, or Firefox and build your map from any PC.

How it works

Upload your notes

Drop in a PDF, a Word file, slides, or a photo of handwritten pages.

Generate the map

DeckOwl reads the text and drafts a mind map with main branches and sub-points.

Edit and explore

Adjust the branches so the map matches your course, then study it in the browser.

The free plan gives you 3 generations per month and lets you study in the browser. Exporting files, such as PDF or DOCX, is part of the Plus plan at $99.90 per year or $9.99 per month, and students get 40% off with a school email.

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

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Frequently asked questions

How do I start a mind map for a biology unit on cell structure?

Start with the central topic, then add one branch per major organelle or process from your notes. Keep each branch to a few short sub-points so the map stays readable on review.

How many branches should a study mind map have?

Most study maps work well with 4 to 7 main branches, each with two to four sub-points. If you need more than that, split the topic into two maps.

Is the free plan enough to make a mind map on Windows?

The free plan includes 3 generations per month and studying in the browser, so it works on Windows with no download. Exports are not included on the free plan.

Can I export my mind map and notes to a file?

PDF, DOCX, Anki, and CSV exports are part of the Plus plan at $99.90 per year or $9.99 per month. Students get 40% off with a school email.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.