One document library
Import PDF and EPUB files in one place, with room to add more document formats over time.
Document Reader
Read PDF and EPUB documents in one place, then turn source material into connected knowledge
Import PDF and EPUB documents. PDFs currently support page-by-page reading, selected-text annotations and questions, knowledge cards, and editable mind maps. EPUB pagination and parsing are being added.
Open knowledge workspaceDesigned for thinking that keeps evolving
Deep PDF reading
Read page by page while keeping document structure, position, and source context visible.
Annotations and knowledge cards
Capture highlights, notes, and distilled ideas as knowledge cards for later synthesis.
Continue into a mind map
Organize reading insights in an editable map while preserving links back to source material.