MarginNote
An in-depth ebook reading, learning and note taking app
MarginNote launched on May 27, 2017 with 5 votes. The site was still online in September 2026, 9 years on.
What it does
MarginNote: highlight PDFs → auto-generate cards → organize in a mind map → FSRS-style review. 13 years of iteration (since MN1 in 2013), 188K+ App Store ratings. For medical school, graduate exams, research, law, and other long-term reading work.
Books you read should still be useful later. MarginNote keeps highlights, mind-map notes, and flashcards in one study set, so you can find what you marked when you need it. PDF excerpt · mind map node · flashcard — same card, three forms . Six focused playbooks — built around how real users actually work on iPad and Mac, not a generic feature list. MN 4 reworked the main UI: switch to Immersive Recall — the UI steps aside, the document goes quiet, only the tools your current posture needs stay. What's left is you and what you can remember. Four modules, wired together so that a highlight becomes a mind-map node becomes a flashcard — and then, months later, a cited paragraph in what you're…from marginnote.com
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