A reading tool for
networked knowledge

Effortlessly annotate, highlight, and track your reading progress.

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Organize your reading

Document repository for PDFs, epubs, and webpages.
Read and manage multiple documents at the same time.

Read and manage multiple documents at the same time.

Document repository for PDFs, epubs, and webpages.

Build a networked knowledge base.

Build a networked knowledge base.
Crosslink annotations and comments across your reading.

Crosslink annotations and comments across your reading.

Build a networked knowledge base.
Crosslink annotations and comments across your reading.

Annotations and comments, active reading,
incremental reading, and flashcards