Microsoft OneNote Digital Notebook

OneNote is a digital note-taking application developed by Microsoft as part of the Microsoft 365 suite. First released in 2003, available for Windows, macOS, iOS, Android, and web. Microsoft was founded in 1975 by Bill Gates and Paul Allen. Serves over 200 million users. Key features: free-form canvas: unlike rigid-layout apps, it uses an unlimited canvas where text, images, drawings, audio, and files can be placed anywhere. Notebooks and sections: organize notes into notebooks with color-coded section tabs and pages. Pages can be nested as sub-pages. Rich text editing: fonts, colors, sizes, bullets, numbering, tables, checklists. Tags: tag notes with customizable labels (To Do, Important, Question) for filtering and searching. Ink and drawing: full stylus and touch support. Draw, highlight, and annotate with natural handwriting. Convert handwriting to typed text. Audio and video recording: record meetings with synchronized note-taking. Timestamps linked to audio. Web clipping: clip web pages and screenshots directly into notebooks via browser extension. File attachments: attach any file type. Embedded Excel and PowerPoint. Collaboration: share notebooks for real-time co-authoring with author indicators. Integration: Outlook (email to notebook, meeting notes), Teams, and other Office apps. OCR: extract text from images. Cloud sync via OneDrive. Offline support. C#/TypeScript. Proprietary.