Freely use various information forms to record and create (text, handwriting whiteboard, mind maps, flowcharts, sequence diagrams, Markdown, AI Q&A, recordings, images, files, etc.), with local storage, offline availability, automatic encrypted synchronization across all devices, ensuring no one can see your notes. Suitable for learning, work, encrypted diaries, teaching, presentations, memos, to-do lists, and other scenarios, with core features permanently free.

Core Philosophy

• Freedom: All content can be notes, all notes can be folders, all features can be freely combined and stacked
• Handwriting: Handwriting can better inspire creativity
• Privacy: Ensuring no one can see your notes
• Security: Local data storage is more secure, with cloud backup to prevent loss
• External Brain: Features cover most personal and work-related scenarios, unified information management, solving the problems of scattered file storage and difficult content searching
• Simplicity: Easy to use with no learning curve, we despise software that requires learning before use
• Speed: Opens in one second, ready when inspiration strikes, no waiting