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Turn your notes into an online mind map you can explore

Upload a PDF, DOCX, PPTX, text file, or photo of a page. DeckOwl builds a mind map with branches you can edit, rearrange, and click through.

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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 an online mind map helps you study

Turning lecture notes into an online mind map takes less time than redrawing branches by hand, and the structure makes gaps easier to spot. Seeing how causes, events, and outcomes connect helps you remember why something happened, not just what happened.

Starts from the PDFs, notes, or slides you already have
Every branch can be edited, moved, or removed
Works with photos of printed pages through text recognition
Pairs with flashcards and quizzes from the same material

Example American Civil War mind map branches

Causes of the warSlavery and states' rights disputes · Sectional divide after the 1860 election · Secession of Southern states in late 1860 and early 1861

Major battlesShiloh (April 1862) · Antietam (September 1862) · Gettysburg (July 1863) · Vicksburg (1863)

Key leadersAbraham Lincoln and Jefferson Davis as presidents · Ulysses S. Grant and Robert E. Lee as top generals

Emancipation and ReconstructionEmancipation Proclamation (1863) · Thirteenth Amendment (1865) · Fourteenth and Fifteenth Amendments · Reconstruction governments in the South

Home front and economyConscription laws on both sides in 1862 and 1863 · Income tax introduced by the Union in 1861 · Women in nursing and relief work · Northern railroads and factories

Generate the full set

Branches from your own material

Upload a lecture PDF, slide deck, or typed notes and get a map built from the topics in that file, not generic filler.

Editable after generation

Rename a branch, move a subtopic under a different heading, or delete what you do not need before you study.

Explore instead of scroll

Expand and collapse branches to see the big picture first, then drill into the details that matter for your exam.

How it works

Upload your source

Add a PDF, DOCX, PPTX, plain text file, or a photo of printed pages. Photos are read with text recognition.

Generate the map

DeckOwl organizes the material into a central topic with main branches and sub-points you can open and close.

Edit and explore

Adjust the layout and wording in the browser, then study from the map or turn it into flashcards or a quiz.

A map works best when it reflects your course. Upload the reading or slides you were assigned so the branches follow your instructor's terms and emphasis. You can then trim or reorder anything that does not fit the way your class is organized.

Use the map as a review tool before a test: cover the branch labels and try to recall each sub-point, then open the branch to check yourself. Repeat this for the weak areas you notice.

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Frequently asked questions

How do I build a mind map for the American Civil War?

Start with the central topic, then add branches for causes, major battles, leaders, emancipation and Reconstruction, and the home front. Under each branch, list two to four specific facts such as dates, places, or people. Keep the map to one page so you can see the whole war at a glance.

What should a Civil War mind map include?

Focus on the causes of secession, the turning-point battles like Gettysburg and Antietam, the key political and military leaders, and the outcomes of the war. Including the Emancipation Proclamation and the constitutional amendments of 1865 to 1870 helps connect the war to Reconstruction.

Can I export my mind map?

Exporting is part of the paid plans, which include PDF and DOCX export. The free plan lets you create and study in the browser, but it does not include exports.

Is there a free plan?

Yes, the free plan includes 3 generations per month and studying in the browser. No credit card is needed to start.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.