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Turn your web and open source notes into an editable mind map

Upload a PDF, slide deck, or set of notes and get a mind map you can edit, reorganize, 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 · First set needs no signup · Creates mind maps in seconds

Why a browser-based mind map helps with web and open source study

Students in web development and open source courses often juggle protocols, tools, licenses, and workflows that all connect to each other. A mind map web app lets you see those connections on one page, and DeckOwl runs in your browser so there is nothing to install.

Map the layers of a web app: front end, back end, and data storage.
Track open source license types and what each one requires of you.
Break a contribution workflow into steps such as fork, branch, commit, and pull request.
Keep HTTP, HTML, CSS, and JavaScript concepts in one connected view.

Example web and open source mind map branches

Open source licensesPermissive (MIT, Apache 2.0) · Copyleft (GPL, AGPL) · Source-available licenses, which are not open source

Client-server web architectureBrowser sends HTTP requests · Server returns HTML, CSS, or JSON · Database stores persistent data

Open source contribution workflowFork the repository · Create a feature branch · Open a pull request for review

Core front end languagesHTML structures content · CSS controls layout and style · JavaScript adds behavior

Basic web securityUse HTTPS with TLS · Guard against cross-site scripting (XSS) · Validate input on the server

Generate the full set

Works from any PDF or notes

Upload PDFs, DOCX, PPTX, plain text, or photos of pages, and the map is built from your own material.

Editable branches

Rename, move, or add branches so the map matches how your course or project is organized.

Explore at your own pace

Expand and collapse sections to focus on one layer of a topic, such as front end, back end, or licensing.

How it works

Upload your material

Add a PDF, DOCX, PPTX, text file, or image of a page from your web or open source course.

Review the generated map

Check the main branches and sub-points, then edit anything that is missing or unclear.

Explore and study

Click through the branches to review each topic, and turn key branches into flashcards or a quiz.

Start with your own lecture notes or a project README, then let the map pull out the main branches. Edit the layout so related ideas sit together, and expand the sections you need to review before an exam or a first pull request.