plainfolder → Ham radio → ADX

Open an ADX file — an ADIF ham radio log in XML

Drop the .adx here and the log opens as a table of QSOs with search and filters, the same way an .adi does — and saves as ADI for programs that read only that, or as Excel and CSV.

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What a .adx file is

ADX is ADIF written as XML: the same fields as an .adi file, but each one as an element like <CALL>K1ABC</CALL>, with QSOs inside <RECORD> and a <HEADER> at the top. It is part of the ADIF standard and allows text in any language through fields ending in _INTL. Ham Radio Deluxe, MacLoggerDX, RUMlogNG and QLog are among the programs that write it. (Other unrelated formats use .adx too — an ADX file from a car tuning program or a game’s audio is not a radio log.)

Fewer programs read ADX than ADI, so an .adx often has to be turned into .adi before the next program will take it. Here it opens directly — including Ham Radio Deluxe files saved as UTF-16 — and saves as ADI, with the international text written the way ADI expects.

What you can do here

Any logging programEach program writes ADIF its own way — field lengths counted in bytes or in characters, Latin-1 or UTF-8, UTF-16 from Ham Radio Deluxe. All of them open with every accent in its place: São Paulo stays São Paulo.
Nothing is lostEvery field is kept, including the ones a program adds for itself (APP_ fields) and user-defined ones, so saving the log again does not drop anything.
Files for radio programming softwareChannel and DMR contact files are made for the radio maker’s software (CPS), not written to the radio. Tested by importing into AnyTone AT-D878UVII CPS 4.00, AT-D878UV (first model) 4.00, AT-D890UV 1.05, AT-D578UV 1.21, AT-D868UV 1.39, AT-D168UV 1.07, BTECH DMR-6X2 PRO 1.22e, OpenGD77 CPS E2026.05.26, Baofeng DM-32UV V1.60, TYT MD-UV380/UV390 CPS V1.06, Retevis RT3S V2.41, Baofeng DM-1701 V1.05, Radioddity GD-77 V3.1.9 and Ailunce HD1 V3.05.
Messy files tooA field with a wrong length, a log that ends without its last end-of-record, the comments LoTW writes after its values — read the way the program meant them.

Convert ADX to something else

ADX→ADIF

Questions

How do I turn an ADX into an ADI?
Open the .adx here and choose Save log as → ADIF (.adi). Every QSO and field goes across; text from the _INTL fields is written into the ordinary fields, because ADI has no _INTL fields.
Is the log uploaded anywhere?
No. The file is read in your browser; nothing is sent to a server.
Does it read an ADX file from Ham Radio Deluxe?
Yes. Ham Radio Deluxe saves ADX as UTF-16, which some readers cannot open; it is recognised here automatically.