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Turn your science notes into a mind map you can explore

Upload a PDF, slide deck, or photo of a textbook page. DeckOwl builds an editable mind map with your main concepts as branches, so you can see how each idea connects.

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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

How science mind maps help you study

Science courses stack vocabulary, processes, and cause-and-effect chains on top of each other, and science-related mind maps make those links visible at a glance. Upload your lecture notes or chapter PDF, and DeckOwl builds a branching map with the central idea in the middle.

Put one central concept in the middle and keep main branches to the chapter's major ideas.
Add causes, examples, and definitions on smaller branches below each main idea.
Keep labels short enough to read at a glance during review.
Check each branch against your slides so nothing important is missing.

Example cell biology mind map branches

Cell membranePhospholipid bilayer · Selectively permeable · Embedded proteins for transport

NucleusHolds DNA · Surrounded by nuclear envelope · Controls gene expression

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

RibosomesSites of protein synthesis · Found free or attached to rough ER

Endoplasmic reticulumRough ER makes proteins · Smooth ER makes lipids and detoxifies

Generate the full set

Built from your own material

Start from the PDF, DOCX, PPTX, plain notes, or photos of pages you already have, not a generic template.

Editable branches

Rename nodes, move branches, and add your own examples as the course goes on, so the map matches what your instructor taught.

Explore node by node

Expand and collapse branches to focus on one process at a time, then spot gaps where a branch has nothing under it.

How it works

Upload your notes

Add a PDF, DOCX, PPTX, text file, or a photo of a page. No credit card is needed to start.

Generate the map

DeckOwl reads the material and arranges the main concept at the center with branches for the key ideas.

Edit and explore

Adjust labels and structure, then move through the map to review the links between topics.

Because the map is editable, you can reorganize it as the course moves on and add details from lab or class. Exploring it branch by branch also shows you which topics your notes skipped, which is often where exam questions come from.

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Frequently asked questions

How do I make a science mind map that is easy to review?

Start with one central concept and add a handful of main branches for the chapter's major ideas. Put causes, examples, and definitions on the smaller branches below them, and keep the labels short.

What should a cell biology mind map include?

Include the structures or processes the chapter names, how they relate to each other, and any terms you would need to define on an exam. Compare the branches against your lecture slides to catch gaps.

Can I export my science mind map?

The free plan lets you build and explore maps in the browser. Exports such as PDF and DOCX are paid features on Plus.

How much does DeckOwl cost?

The free plan includes 3 generations per month. Plus is $99.90/year or $9.99/month, and 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.