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Turn your notes into a concept map you can edit and explore

Upload a PDF, DOCX, PPTX, text file or photo of a page. DeckOwl builds a mind map with a central topic and branches you can rearrange, expand and study.

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

Why a concept map helps with dense course material

Students with a stack of lecture slides and textbook chapters often want a concept map maker app that handles the layout work. DeckOwl reads PDF, DOCX, PPTX, text and page photos, then builds a mind map you can change.

Turns PDFs, DOCX and PPTX files into a mind map with a central topic and branches
Reads photos of pages with text recognition, so handwritten or printed notes work
Lets you edit and reorganize branches so the map matches your course outline
Pairs with flashcards and quizzes generated from the same notes

Example electric circuits mind map branches

Ohm's lawVoltage equals current times resistance · Current is measured in amperes · Resistance is measured in ohms

Series circuitsSame current flows through every component · Voltages across components add to the source voltage · One break stops the whole circuit

Parallel circuitsEvery branch has the same voltage · Branch currents add to the total current · Adding branches lowers total resistance

Kirchhoff's current lawCurrent entering a junction equals current leaving it · Based on conservation of charge · Applies at every node

Power in circuitsP = VI · Also P = I²R and P = V²/R · Measured in watts

Generate the full set

Built from your own material

Start with your lecture slides, textbook chapter or handwritten notes photographed on your phone. The map reflects what you actually studied.

Editable branches

Rename nodes, move branches and add missing links so the map matches how your course organizes the topic.

Explore at your own pace

Open each branch to see the detail underneath it, then turn the same material into flashcards or a quiz when you are ready to practice.

How it works

Upload your notes

Add a PDF, DOCX, PPTX, plain text file or image of a page. Text recognition reads photos of printed or handwritten pages.

Generate the map

DeckOwl identifies the main concept and the related ideas, then arranges them as a mind map with branches.

Edit and explore

Adjust the branches, then click through them to review the details. Regenerate from another chapter for a fresh view of the same subject.

Electric circuits show why this matters. Voltage, current and resistance are tied together by Ohm's law, and each circuit rule links back to those quantities. A map of those links shows the relationships more clearly than a list of definitions.

After generation, you can edit the branches and explore each one in detail. Rebuild the map from a different chapter whenever you want a new view of the same material.

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Frequently asked questions

How do I make a concept map from electric circuits notes?

Upload your notes or a PDF of the chapter and start with a central idea such as voltage, current or resistance. Check that each branch links to a law, rule or example from the text, and add any missing links by hand.

What should a circuits concept map include?

Include the core quantities with their units, the laws that relate them, and series and parallel behavior as separate branches. Connect each law to a worked example so the map shows how the ideas fit together.

Is the concept map maker free?

The Free plan includes 3 generations per month and studying in the browser. Exports to PDF, DOCX, Anki and CSV are part of Plus, which costs $99.90/year or $9.99/month.

Do I need a credit card to start?

No. You can begin on the Free plan without a credit card, 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.