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Get a free mind map from any PDF or set of notes

Upload your lecture notes, slides, or a PDF and get a mind map you can edit, rearrange, and explore in your browser.

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 browser-based mind map helps you study

Our free mind map web app turns a dense chapter into a structure you can see at a glance. Instead of rereading pages of web development notes, you can trace how HTTP, HTML, and CSS ideas connect from one central topic.

Works on a laptop or tablet with no download
Reads PDFs, Word and PowerPoint files, plain text, and photos of pages
Keeps the map editable so you can refine it as you learn
Pairs well with a quiz or flashcards when you want to test recall

Example web development mind map branches

HTTP request methodsGET retrieves data · POST creates data · PUT replaces data · DELETE removes data

HTML document structureDoctype declares HTML5 · Head holds metadata · Body holds visible content

CSS box modelContent · Padding · Border · Margin

Same-origin policyRestricts scripts from reading other origins · Origin is scheme, host, and port · CORS relaxes it per server header

Web accessibility basicsAlt text for images · Semantic HTML landmarks · Logical keyboard focus order · Sufficient color contrast

Generate the full set

Runs in your browser

Open the app, upload your material, and study without installing anything.

Editable branches

Rename, move, or remove branches so the map matches how your course organizes the topic.

Explorable structure

Expand and collapse sub-points to focus on one section of a large topic at a time.

How it works

Upload your material

Add a PDF, DOCX, PPTX, plain text notes, or a photo of a page.

Generate the map

DeckOwl reads the content and builds a branched map of main ideas and sub-points.

Edit and study

Adjust the branches, then explore the map to review how the ideas connect.

Mind maps work best when you can change them. Rename a branch, move a sub-point under a better heading, or collapse sections you already know. The map stays yours to shape as your understanding grows.

The free plan includes 3 generations per month and lets you study in the browser. Export options are part of the paid plans, so you can decide when a map is worth keeping outside the app.

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Free mind map app for notes and PDFs

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

Free mind mapping app for students

Turn lecture notes and PDFs into an editable mind map, free to start, with no credit card needed.

Best Mind Map App for Apple Users

Turn your PDFs and notes into an editable, explorable mind map with AI.

Best Mind Map App for Apple Pencil

Build an editable mind map from your PDFs and notes to review on iPad.

Frequently asked questions

How do I study web development topics like HTTP methods?

Learn what each method does and when it is used, then practice matching requests to outcomes. A mind map with one branch per method makes it easier to compare them.

How many branches should a web development mind map have?

Aim for 5 to 7 main branches, each with 2 to 4 sub-points. That keeps the map readable while still covering the topic.

Is the free mind map web app really free?

The free plan includes 3 generations per month and studying in the browser. Exports to formats like PDF and DOCX are paid features on the Plus and Pro plans.

Can I upload a photo of my notes instead of a file?

Yes. Photos of pages are read with text recognition, so you can start from handwritten or printed notes you have snapped.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.