ADIF Log Analyser

Drop in one or more ADIF logs and get a useful view of what actually happened: QSO totals, bands, modes, timing, possible duplicates, validation warnings and the full contact table.

Raw ADIF is excellent for moving log data between programs. It is considerably less pleasant to read yourself, which is why I made this.

Everything is parsed locally in your browser. Your log files are not uploaded anywhere.

Load a log

Start with the source files

Load one or several .adi or .adif files. They are combined for analysis while every contact keeps its source-file identity.

Drop ADIF logs hereor click to choose one or more files

Status: No logs loaded yet.

No export handy?Add contacts manually

The workbench is ready.Once loaded, the analyser combines the files and shows activity, validation, sessions, mapping and a searchable contact table.

Overview

Log summary

Total QSOs0

Files0

First QSO—

Last QSO—

Active span—

Unique calls—

Bands—

Modes—

Possible duplicates—

Validation warnings—

Things worth checking

Validation

Timing

QSO activity

Bands

Modes

Apparent operating blocks

Sessions and activations

New session after

Grouped by station, date, location or reference, with long gaps split into separate sessions.

Interrogate the combined log

Contacts

0 shown

SearchFromTo

0 selectedSet fieldValue

					Grid	Reference	Station	Distance

Current filtered view

Contact map

Grid-derived contacts will appear here. Broader location clues remain visibly lower-confidence.

Basemap

Show traces

No station callsigns in this view.

Trace opacity18%PNG Legend

A new file, never a changed source

Export

RecordsPresetOutput filenameStation callsignOperatorYour park or summitContact park or summitUnreviewed duplicates

Overwrite existing award and reference fields. Otherwise existing values are left alone.

Limits

This is a practical parser for ordinary exported ADIF logs rather than an attempt to implement every obscure variation of the format. Duplicate matches are deliberately warnings, location fallbacks are labelled by confidence, and session grouping is only a suggested view of the data.

If you find a log it cannot read properly, send it to me and I can take a look.