KLog

KLog 2.5

KLog is a multiplatform free hamradio logger. It runs natively on Linux, macOS and Windows.

  • By EA4K
  • Open Source
  • Updated Mar 29, 2026
Download for Windows

About KLog

KLog is a multiplatform free hamradio logger. It runs natively on Linux, macOS and Windows.

What's new in 2.5

Mar 2026 - 2.5

  • New feature: Spots are sent to the map with the starts color and callsign.
  • New feature: Mouse shows in the map the QSOs providng that Locator.
  • Enhancement: Modes are now used to calculate needs & stats if selected.
  • Enhancement: Start time optimizations.
  • Enhancement: Split is now managed also from radio/UI.
  • Enhancement: Optimized the exit from Setup to make it faster.
  • Enhancement: Band & Modes fully migrated to DataCache
  • Enhancement: Test on QSO cache class.
  • Enhancement: Complete ADIF->IsValidPOTA (Closes #717)
  • Enhancement: Complete ADIF->IsValidWWFF (Closes #718)
  • Enhancement: List view fields order and sorting (Closes #678)
  • Enhancement: Created a QHash to speed up the execution reducing database access.
  • Enhancement: Logs and stats are updated if other log is selected.
  • Enhancement: Save & restore the width of the columns of the logview (Closes #925)
  • Bugfix: UTC time is not correctly shown on QSO tab (Closes #933)
  • Bugfix: klog-2.5-RC3 hamlib rigctld looping between VFOs continually. (Closes #947)
  • Bugfix: KLog does not follow the radio in read mode when leaving manual mode (Closes #417)
  • Bugfix: Some DXCC are missing (Closes #811)
  • Bugfix: DXCluster password not sent to server after callsign (Closes #829)
  • Bugfix: qmake6 printed spurious "using private headers" PROJECT MESSAGE warnings caused by the quickwidgets and location Qt modules; suppressed with no_private_qt_headers_warning.
  • Bugfix: Map shows "The geoservices provider is not supported" and crashes with a QGeoMapType binding error on platforms where the Qt6 Location OSM plugin is not installed (e.g. Raspberry Pi); map now shows a user-friendly "not available" overlay instead (Closes #447)
  • Bugfix: Verbose Qt6CTPlatformTheme palette/hint debug messages from the qt6ct platform theme no longer pollute the console output.
  • Bugfix: DXCluster spots not shown on map; callsign and status color now displayed correctly (Closes #581)
  • Bugfix: QRZ.com queries deliver wrong info (Closes #696)
  • Bugfix: Klog 2.4.1 does not upload queued QSO onto the LOTW (Closes #808)
  • Bugfix: The character ' is needed for some names and QTH and should be allowed. (Closes #328)
  • Bugfix: Check why clublog does not detect KLog in the stats (Closes #257)
  • Bugfix: Satellite tab not populated when editing a QSO (Closes #894)
  • Bugfix: Segmentation fault (core dumped) when exiting Klog on Ubuntu 22.04 (Closes #468) …

Full release notes »

Technical details

PublisherEA4K
Version2.5
Release date2026-03-29
LicenseGPL-3.0
Installer typeexe
Architecturex64
Package IDEA4K.KLog

Links & install command

Install KLog from the command line with Windows Package Manager (winget):

winget install --id=EA4K.KLog -e

amateur-radiodxclusterfreegplv3hamradiologgerlotwqslradiomateur

Older versions

  • 2.4.3
  • 2.4.2
  • 2.4.1
  • 2.3.4
  • 2.3.2