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Cross‑platform
Windows, macOS, iPhone, iPad, Android, HarmonyOS, Linux, and more
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Cross‑platform, handwriting, AI assistant, privacy‑first
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Local‑first, offline available
Your notes are files on disk. No vendor lock‑in or server outages
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Handwriting on every device
Write and draw freely with pen, touch, mouse, or tablet
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Mind maps and diagrams
Mind map, flowchart, sequence diagram, whiteboard; all searchable
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Encrypted sync
AES+MD5 encryption. Even developers cannot read your notes. Unlimited devices
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Markdown and shortcuts
Nearly all Markdown syntax with powerful keyboard shortcuts on desktop
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PDF annotation
Insert PDF, images, tables, files, and annotate with handwriting
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Core features are free
Text, whiteboard, mind map, diagram and more; free, ad‑free, no watermark
Unleash creativity with handwriting and drawing
Handwriting and drawing inspire creativity
Write and draw on any device (stylus/touch/mouse/tablet)
Annotate PDFs, mind maps, and any content with handwriting
Infinite canvas expansion
Mind maps, flowcharts, sequence diagrams
Create freely with flowchart, mind map, and whiteboard elements
Mind map and flowchart content is fully searchable
Multiple themes and modes, free export without watermarks
AI Q&A automatically becomes notes
Large language model-based AI assistant
Generated content automatically becomes editable notes
Supports deepseek and deep thinking, continuously improving capabilities
Multi-dimensional knowledge network, build your second brain
Quick recording and quick retrieval
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Up to 7 levels of folder nesting
Notes can be folders, with unlimited nesting flexibility
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Automatic tag categorization
Tags added to notes are automatically categorized for easy viewing
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Bidirectional links
Links, backlinks, parent-child, and sibling relationships clearly visible
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Global search
Search text, images, files, mind maps, and all content globally
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Outline view
See your note structure at a glance
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Favorites
Simple and easy-to-use favorites function
More powerful bidirectional links
Automatically record and display various relationships between notes
Support for links, backlinks, parent, child, and sibling relationships
Insert links in mind maps and flowcharts
Different devices, different interaction experiences
Desktop offers comprehensive features with keyboard shortcuts
Tablets focus on handwriting and drawing
Phones focus on quick notes and viewing
Supports Markdown syntax and shortcuts
Supports almost all Markdown syntax
See effects as you type syntax
Every Markdown syntax has a corresponding shortcut