New: Ideas, revisited — notes you have not touched in a while resurface daily, with a home screen widget. Plus move notes between cards and reversible note ordering.

Turn your knowledge into a growing asset.

ZettelkastenNote is a card-based knowledge management app inspired by the Zettelkasten method — a system where you capture ideas as small cards and connect them to build a growing web of knowledge.

Organize Your Thinking

• Capture ideas as atomic cards (Zettels) with notes
• Group related ideas together
• Turn scattered thoughts into structured insights

Discover Connections

• See your knowledge as a link graph
• Get automatic similar-Zettel suggestions (on-device AI)
• Search by meaning, not just keywords
• Skim recent notes in a timeline

Intuitive & Simple

• Drag & drop to reorder freely
• Swipe for quick access
• Clean, distraction-free interface
• Scan text from photos straight into your notes
• Web links appear as rich cards with titles
• Light and dark appearance

Privacy First

• Local-first design
• Your data stays on your device and (optionally) in your private iCloud
• No tracking, no ads, no third-party data sharing

Sync Across Devices (Optional)

• iCloud sync across all your Apple devices
• Toggle sync on/off anytime in Settings
• Works fully offline when sync is off

Perfect For

• Capturing fleeting ideas before they disappear
• Organizing what you learn from books and articles
• Building a personal knowledge base over time
• Collecting problem-solving insights

Download free and start building your knowledge system today.