Welcome to the KLog website!

KLog is a multiplatform free hamradio logger, the only one able to run in Linux, Windows and macOS!

KLog icon

KLog is providing QSO management, useful QSL management DX-Cluster client, DXCC management, ClubLog integration, WSJT-X, DX-Marathon support and much more!

KLog is today already in several languages: Catalan, Croatian, Danish, English, Finish, Italian, Japanese and Spanish.

You can also see some Screenshots of KLog to see what it looks like.

You can write your own review on the KLog eHam review page

If you want to help us, please visit the Contribute page and find your way to improve KLog!

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KLog 1.5 – Bugfixes, optimizations and new features

After a long time, it is time for a new release.

Check the changelog, there are many new things!

March 2021 - 1.5
- Added the 8M & 5M bands.
- New feature: Added "Adif file deletion" checkbox. User can choose to show or not the message boxes after uploading QSOs.
- New feature: New function added to fill automatically the satMode field in satellites Tab depending on upload/download frequencies.
- UI: Added EA5WA as Author. :-)
- New feature: LoTW confirmation is also counted for DXCC & WAZ.
- New feature: DUPES are now identified when coming from WSJTX, ADIF logs, LoTW logs or simply adding a QSO.
- New feature: Added a time period to consider a QSO as DUPE if call, band & mode are also the same. (Closes issue#41)
- Improvement: Hamlib now supports network communication (TNX DG1VS)
- Improvement: Optimized the way DXCC & WAZ are managed.
- Improvement: KLog receives the clear messages from WSJTX and is able to clear the KLog UI.
- Statistics: Added the Grids on Satellites statistics.
- Statistics: Added the DXCC on Satellites statistics.
- UI: Removed the QComboBox of the Setup Log tab to select the log. (TNX G4MKT)
- UI: Added the QSO per log in the logs setup.
- UI: Added a checkbox to keep the Propagation mode, if needed. Propagation mode is also linked to the Satellite tab. (TNX EA5WA)
- UI: Added a Help->Online Manual menu or push F1 to go to the Online Manual (Closes issue #52)
- Bugfix: Improved the way the QSOs come from WSJT-X. (EA5WA)
- Bugfix: Double clicking on a call, while searching made the search to be redefined to that call and the previous search was lost.
- Bugfix: Satellite stats where not properly calculated. (TNX EA5WA)
- Bugfix: Identifying some bands was not properly done due to the names being in lower case.
- Bugfix: When importing an ADIF and asking for a default station callsign, it was only used for the first QSO, leaving the rest without a station callsign.
- Bugfix: Stats widget where not being properly created.
- Bugfix: The Log combobox on the Statistics was not working. (TNX EA5WA)
- Bugfix: End date tooltip updated on the export widget.(TNX G4MKT)
- Bugfix: DX Locator tooltip was not OK. (TNX G4MKT)
- Translations: Catalan (TNX Txema) & Spanish (EA4K).

Downloads are not in the usual Savannah repository as it is taking time for Savannah to decide if we can keep or not so packages are only released on Github.

Check the following link to download:


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Where are the downloads?

A couple of days ago I noticed that the KLog files, hosted in Savannah.nongnu.org were not existing anymore…

I am in contact with the Savannah admins to try to recover the repositories but just while the repositories are back or the final decision is to move to another place, the latest release is here:


Sorry for the inconvenience.

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KLog 1.4.7

It was already a couple of days ago but I forgot to publish that KLog 1.4.7 was released.

The changelog includes:

January 2021 - 1.4.7
- Added the Q65 mode.
- eQSL sent is added as Q when received from WSJT-X (github issue #45)
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KLog 1.4.6 Improving WSJT-X integration

I am releasing today KLog 1.4.6.

It is a very special release, even if not too big, because the work has not been done by EA4K 🙂

KLog 1.4.6 changes have been coded by EA5WA who is working hard to understand how KLog is done and sending many improvements, comments, testing support to the users and during the last weeks also code! (Congratulations!)

This is the Changelog:

 January 2021 - 1.4.6
 - Bugfix: Improved the way the QSOs come from WSJT-X. (EA5WA)
 - UI: Changed QRZ to Callsign.

We have also changed QRZ to Callsign, something that has been requested by users 🙂

I hope you enjoy KLog and Thank you Juan Carlos for this release!

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KLog 1.4.5 – Quick bugfixes

I have just released KLog 1.4.5.

It is not including new features, just bug fixes and new modes and satellites added.

January 2021 - 1.4.5 
- Added the FST4 and FST4W modes. 
- Added the RS-44 satellite. 
- UI: Changed "Config Dialog" to "Settings". (TNX G4MKT)

I hope you enjoy KLog.

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KLog is in GitHub

From time to time some people ask me to push my code to GitHub.

I must admit that I am confortable having KLog in the Savannah SVN. It works without any error, not a single problem since I started to use it many years ago, I also have some automations built at home, in my development environment… I though that it made no sense to migrate to GitHub.

Some days ago I decided to move my code to GitHub, I will probably keep Savannah and GitHub repositories until (hopefully) I finally get the same feeling with GitHub than Savannah.

I am doing this with the hope that some of you will be contributing to KLog easily if it is in GitHub and maybe KLog improves 🙂

If KLog development is mainly mine, it makes no sense to move to GitHub.

Anyway, you can find two repositories:

https://github.com/ea4k/klog This repository hosts the code of KLog.

https://github.com/ea4k/klog-data This repository hosts files that are useful for KLog users or developers.

I hope this changes are useful for KLog!

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KLog 1.4.4 – Bugfix for Christmas

I am releasing today KLog 1.4.4 with two bugfixes.

It is a very quick release while working on 1.5.

December - 1.4.4
 Bugfix: QSOs received from WSJT-X may not be saved properly.
 Bugfix: ClubLog, eQSL.cc and QRZ.com were losing one setting. (TNX EA5WA) 

Please update your KLog package.

Stay safe.

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KLog wiki

Many times, many people have asked for a manual, documentation, guide or similar.

A document explaining how to do something in particular or define some feature.

I admit, I prefer to code than to document but the manual could not wait any longer.

I have installed a Dokuwiki instance so we (yes, not only me, you also can support) write a manual for KLog.

You can find the manual in the KLog wiki.

If you want to contribute, register with your callsign and send me an email so I can change your profile to the editor profile… yes, it is not done automatically but I prefer to go this way to have the wiki full of spam in some days.

I will work on the wiki, trying to explain how to use KLog and I will also try to not releasing a new feature that is not explained I the Wiki.

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KLog 1.4 – Online services and more

KLog 1.4 has been released.
This relased has been possible after a lot of testing and bug fixing (Thank you for all the testers!)

This version of KLog is a quite interesting one as it adds support for online services like LoTW, QRZ.com, ClubLog and eQSL.cc. It is still basic level but it will allow you to:
– Upload & download your QSL confirmations to LoTW.
– Check for calls in QRZ.com and fill your QSOs automatically.
– Upload your log to QRZ.com, ClubLog and eQSL.cc.

WSJT-X will update how QSOs are sent to the loggers in its next version and KLog is already prepared for it.

In addition, many bugs have been fixed.

The Changelog shows:

- Improvement: Prepared the WSJTX-2.4 UDP interface.
- Improvement: User data stored in the setup is know used in the QSOs (default power, station callsign).
- Improved the KG4xx (Guantanamo bay) DXCC detection from KG4 calls.
- Updated how KLog counts the confirmed DXCC entities to include LoTW confirmations.
- New feature: QSO upload to the QRZ.com Logbook (including qso selection and qso mark that has been uploaded)
- New feature: QSO upload to the eQSL.cc Logbook (including qso selection and qso mark that has been uploaded)
- New feature: ClubLog full log upload (adding or overwriting).
- New feature: It is possible to keep the comment field from one QSO to the following one. (TNX EA5WA)
- New feature: It is possible to select multiple QSOs in the log and execute several actions with the selected QSOs.(TNX EA5WA)
- New feature: It is possible to check for the data of calls in QRZ.com (you need a subscription in QRZ.com)
- UI: Removed the Keep my data option from the Setup UI.
- UI: The RX frequency follows the TX unless the split is checked.
- UI: Consolidation of all the electronic logs configurations in one single setup page into the eLog tab.
- Bugfix: Save all QSOs to ADIF process continued even if the user clicked in cancel.(TNX G4MKT)
- Bugfix: Backup file was not being created in the right path.(TNX G4MKT)
- Bugfix: Some paths were converted to upper case causing some issues in some case sensitive situations. (TNX G4MKT)
- Bugfix: In some cases, the RST format was not properly defined.(TNX G4MKT)
- Bugfix: Default ADIF file was not being saved on exit. (TNX G4MKT)
- Bugfix: It was not possible to select empty logs from the preferences. (TNX G4MKT)
- Bugfix: QSOs comming from WSJTx were not being uploaded to ClubLog. (TNX PD9Q)
- Bugfix: Too many mesages when uploading in realtime to Clublog. It should be done silently.(TNX EA5WA)
- Bugfix: Typo in the INSTALL-linux. (TNX DL4TO)
- Bugfix: Hamlib polling rate was not being saved from the setup. Default value is defined to 300ms. (TNX G4MKT)
- Bugfix: Complete with previous QSO (name, locator, ...) was not working properly.
- Bugfix: PROGRAMID ADIF data was not properly tagged.
- Bugfix: When selecting the QSOs to upload to LoTW, if the selected call was the first one on the combobox, selection didn't worked properly.
- Bugfix: When importing ADIF files with fields without RST_SENT or RST_RCVD the proposed default value was not adapted to the mode of that QSO.
- Bugfix: Extension .adi was always added, even if the file had it already.
- Bugfix: When doing a database backup, the name of the file was not being properly defined.
- Bugfix: ClubLog realtime syncronization was not working properly.

Download the new release and I hope you enjoy KLog

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KLog 1.3.2 – Bugfix on WSJT-X parse

Another bugfix release

October – 1.3.2
– Bugfix: Data comming from WSJT-X, when several WSJT-X instances were running was not properly parsed. (TNX 2E0WJW)

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