HAM radio logging that works everywhere, even offline.
Fieldbook is a browser-based, offline-first logbook for desktop, tablet and mobile — no install required. Log contacts in the field with no signal, and it syncs the moment you're back online.
Everything you need, wherever you're operating
Built for operators who don't always have a signal — at a POTA activation, or just a spotty home connection.
Browser-based
No app store, no native installer — Fieldbook runs entirely in your browser on any device.
Offline-first
Every screen works with no connection. Contacts save straight to an on-device store and sync automatically once you're back online.
Multiple logbooks
Keep separate logbooks per station or activity, including a POTA-specific template.
ADIF import & export
Bring in contacts from your existing logs, or export at any time — your data is never locked in.
QRZ, DXCC & POTA lookups
Callsigns, DXCC/CTY entities and POTA park data are looked up and attached to contacts automatically.
Map view
See every contact plotted on a map, built right into your logbook.
Multi-device sync
Log on the radio with your tablet, review later on desktop — everything stays in sync.
Installable PWA
Add Fieldbook to your home screen for a full-screen, app-like feel — entirely optional.
Operating utilities
Band conditions, Maidenhead locator conversion and antenna length calculators, built in.
See it in action
The same logbook, on whatever device is closest to hand.
Simple pricing
Sync is free for everyone. Upgrade to Pro for more storage and extras.
- Unlimited logbooks
- Cloud sync across devices
- Basic dashboard
- Everything in Free
- In-app rewards & badges
- Priority support
| Feature | Free | Pro |
|---|---|---|
| Logbooks | Unlimited | Unlimited |
| Offline sync | ||
| QRZ callsign lookups | Unlimited | Unlimited |
| Live POTA spots | ||
| Band conditions | ||
| QSO import limit | Up to 10,000 total | Unlimited |
| Dashboard | Basic stats | Full QSO breakdown |
| Embeddable widgets | ||
| In-app rewards & badges Coming soon | ||
| Priority customer support | ||
| QSO version history | ||
| Deleted QSO recovery |
Start logging in minutes
No credit card required. Install it as an app, or just use it in your browser.
Get started free