Notable is a local-first markdown note-taking application designed for managing personal knowledge bases. It functions as a document management system that stores all notes and attachments as plain text files directly on the local disk, ensuring data ownership and compatibility with external file-system tools.
The application prioritizes a keyboard-centric workflow, utilizing a command-palette-driven interface to facilitate rapid navigation and content manipulation. It provides a distraction-free writing environment that allows users to hide interface elements, helping to maintain focus while composing structured documents.
The platform supports advanced content management through hierarchical tagging, which allows for nested categorization of information. Users can perform batch operations on multiple items simultaneously, such as tagging or organizing large libraries, and utilize a side-by-side editor to view live previews of formatted markdown, including mathematical expressions, diagrams, and syntax-highlighted code blocks.