NoteGen is an open-source, cross-platform Markdown note-taking application designed to facilitate messy thinking by allowing users to capture fragmented thoughts and organize them seamlessly. It features an AI-native writing workflow that enables users to chat, rewrite, translate, and polish their notes alongside the editor. With robust image workflow capabilities, users can capture, recognize, and reuse images within their notes, ensuring a versatile note-taking experience.

The application supports native Markdown storage, ensuring notes remain portable and future-proof. It includes built-in knowledge management features, such as retrieval-augmented generation (RAG) and vector indexing. NoteGen also offers flexible syncing options with various platforms like GitHub and WebDAV, making it a powerful tool for productivity across Windows, macOS, Linux, Android, and iOS.