KnotWise — Sailing Logbook

KnotWise is the digital ship's logbook for experienced bluewater sailors — offline-first, built for serious passage-making, with optional multi-device sync.

— FULLY OFFLINE —
Once you're signed in, KnotWise runs entirely without an internet connection. At sea, at anchor, in a marina with no signal — your logbook is always available. On the Free plan your data stays on your device; Sync and Share add the KnotWise Cloud, hosted in Switzerland.

— NMEA LIVE INTEGRATION —
Connect KnotWise directly to your onboard instruments. GPS position, wind speed, heading, depth and log — all flow automatically into your log entries. Enter once. Use three times: logbook record, passage statistics and customs document from a single source.

— PROFESSIONAL PDF EXPORT —
Generate print-ready documents directly from your log data:
- Ship's logbook (A4, fully formatted)
- Customs declaration
- Crew list for port entry
- Ship dossier

— COMPLETE VESSEL MANAGEMENT —
KnotWise covers the full lifecycle of a passage — and everything between them:
- Logbook & passage log — every voyage documented without gaps
- Maintenance board — tasks, intervals and service history at a glance
- Inventory & stowage plan — always know what's aboard and where
- Crew management — crew members, documents and emergency contacts in one place
- Offline vector charts — your track drawn automatically from log entries
- 16 navigation calculators — tides, waypoints, fuel, provisions and more

— OPTIONAL SYNC —
Keep KnotWise in sync across your iPad, Mac and PC. Sync comes with the Sync and Share plans; without one, KnotWise works standalone on a single device. Offline availability is never compromised either way.

— FREE TO START —
Download KnotWise and start logging straight away — no credit card, sign in with an email code, no restrictions on local data. Sync and extended features are available as optional upgrades.

Built by sailors. For sailors who know what they're doing.

Terms of Use (EULA): https://knotwise.app/terms/ - Privacy Policy: https://knotwise.app/privacy/