Format guide

ADIF

Amateur Data Interchange Format

ADIF is THE universal interchange for ham radio QSO logs since 1996, every logging app from N1MM Logger to ACLog to fldigi to WSJT-X to Log4OM exports and imports it. Format is tag-length-value: <CALL:5>K1ABC, then <EOR> between contacts. The current spec is ADIF 3.1.4 with ADIF 3.2 in development.

How to open a ADIF file

All ham radio logging software. eQSL.cc, LoTW (ARRL), QRZ.com, Club Log all import ADIF for verifying contacts.

Primary use

Logbook interchange between ham radio software.

Convert other formats to ADIF

CSV → ADIF
Cabrillo → ADIF

Convert ADIF to other formats

ADIF → CSV
ADIF → Cabrillo
ADIF → KML (map)

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