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Turn your notes into a quick mind map online

Upload a PDF, DOCX, slide deck, or photo of a page and get a mind map you can edit, rearrange, and explore branch by branch.

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 quick mind map online helps you study

A quick mind map online turns a long chapter into a single view of how its ideas connect. Instead of rereading pages in order, you can see the main topic, the categories under it, and the details that support each one.

Works from PDFs, DOCX and PPTX files, plain text, and photos of pages
Produces a map you can edit, not a static image
Lets you expand and collapse branches to study one section at a time
Free plan includes 3 generations per month with no credit card needed to start

Example American Civil War mind map branches

Causes of the Civil WarSlavery and western expansion · Kansas-Nebraska Act and Dred Scott decision · Secession after Lincoln's 1860 election

Major battlesAntietam, September 1862 · Gettysburg, July 1863 · Vicksburg, July 1863

Emancipation and constitutional changeEmancipation Proclamation, January 1863 · Thirteenth Amendment, 1865

Key figuresAbraham Lincoln as president · Ulysses S. Grant as Union general · Robert E. Lee commanding the Army of Northern Virginia

ReconstructionFourteenth and Fifteenth Amendments · Freedmen's Bureau · Presidential Reconstruction under Andrew Johnson

Generate the full set

Starts from your own material

Drop in a PDF, DOCX, PPTX, plain text notes, or a photo of a page. The text is read and organized into main branches and sub-points.

Editable after it is made

Rename branches, move ideas to new places, or add your own points. The map is yours to shape, not a fixed picture.

Explore it on screen

Expand and collapse branches to focus on one section at a time, which makes a long set of notes easier to review.

How it works

Upload your notes

Add a file or paste text. Lecture slides, textbook chapters, and handwritten pages photographed with your phone all work.

Generate the map

The AI pulls out the main topics and arranges the supporting details under each one as a connected mind map.

Edit and explore

Adjust the branches, then move through the map to check what you know and fill in the gaps.

Mind maps work well for subjects with many causes, events, or terms that relate to each other, such as history units or biology systems. Because the map is editable, you can reorganize it as your understanding changes, and expand only the branches you still need to review.

DeckOwl builds the first draft from your own PDF or notes, so the map reflects your course material rather than a generic template. The free plan lets you make a few maps each month and study them in the browser.

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Frequently asked questions

How should I organize a mind map for the causes of the American Civil War?

Start with the central topic, then add branches for long-term tensions such as slavery and western expansion, and for short-term triggers such as the 1860 election. Put specific events, laws, and court decisions under the branch they belong to.

How many branches should a study mind map have?

Most useful maps have 4 to 7 main branches, each with 2 to 4 sub-points. If a branch grows much larger, split it into two branches so it stays easy to review.

Can I export my mind map?

You can study and edit maps in the browser on the free plan. Exporting files, such as PDF or DOCX, is included in the Plus plan at $99.90 per year or $9.99 per month, and students get 40% off with a school email.

Do I need a credit card to try it?

No. You can start on the free plan without a credit card and make up to 3 generations per month.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.