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An open-source academic notebook that brings Markdown notes, PDF annotations, and literature management together.

Collect notes, links, tasks, and files as visual cards on walls with several views and sharing options.

Arrange notes, images, links, and files on visual boards for creative project thinking.

AI study tools that turn notes, PDFs and slides into flashcards, quizzes, notes and mind maps.

A web notes app with wikilinks, a knowledge graph, spaces, tags, search, and cross-device sync.

AI voice notetaker that turns speech into notes, to-dos and output.

A file-based knowledge app with a block editor, databases, workspaces, and live collaboration.

A local-workspace knowledge manager for Markdown, mind maps, diagrams, and other files.

Runs open models locally and exposes a developer interface for using them from apps and coding tools.

A lightweight local Markdown knowledge base with tags, search, and a note graph.

A native Markdown notebook that keeps notes as files and adds linked-note tools.

A distraction-free Markdown editor for writing notes as readable documents.

AI note taker that turns lectures and uploads into notes, transcripts and study materials.

An offline-first Markdown notebook built around files you own and optional iCloud Drive sync.

An open-source iPad notebook for Apple Pencil writing and PDF markup.

Local Markdown notebooks with backlinks, search, and optional self-hosted encrypted sync.

A free, open-source notebook for organizing notes in the browser or on desktop.

Write naturally by hand and add PDF pages to notes for markup.

A zoomable handwriting and planning notebook with sub-pages and document annotation.

An infinite canvas for notes, images, links, to-dos, and nested visual boards.

Keep quick Markdown memos on infrastructure you choose and retrieve them through search.

A notebook app for Mac, iPad, and iPhone with hierarchical pages, handwriting, and cloud sync.

Organize research notes, themes and key insights

Manage health-practice calendars, patient booking, billing, notes, and workflows in one system.