Your Books. Your Notes. Your Second Brain.
Capture ideas, highlights, and quotes from every book you read.
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Digital Library
Keep all your books in one place.
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Smart Notes
Capture ideas directly tied to each book.
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Quotes & Highlights
Save and revisit favorite passages.
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Second Brain
Build your personal knowledge system.
See Brain Shelf in Action
Explore how easy it is to organize your books and ideas.
Demo Screenshot / App Preview
Turn your reading into lasting knowledge.
No credit card required. Start capturing ideas today.