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A native Markdown notebook that adds linked notes, task lists, Kanban, and optional AI tools.

A Markdown writing and notes app with folder and Library modes for Apple devices.

An open-source note app for linked ideas, personal knowledge graphs, and self-hosted knowledge bases.

A mobile note-taking app that combines handwriting, AI-assisted notes, and live whiteboards.

A freeware Windows notebook for formatted notes, spreadsheets, diagrams, and personal information.

A local-first team notebook for real-time collaboration on plain Markdown files.

A handwritten notebook for Apple Pencil notes, PDF markup, study tools, and creative pages.

A local Markdown notebook that maps the path between connected ideas.

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.

An Android handwriting workspace with notebooks, PDF markup, sticky notes, and corkboards.

AI note taker that watches videos and saves Markdown notes to Obsidian

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

A research repository linking findings to original study material

Guided phases that help founders research demand and shape a product idea

Search financial documents and trace research back to its sources

A simple free desktop notebook with safe saves, version history, folders, and a focus mode.

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 local-first knowledge notebook that combines text, handwriting, boards, and linked notes.

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.