1. Description
  2. Download
  3. Installation
  4. Screenshots and video
  5. Changelog
  6. Bugs
  7. Documentation
  8. Contribute
  9. Code browser
  10. Doxygen


Kronometer is a stopwatch application. Kronometer is free software and it’s released under the GPLv2 license.

Kronometer’s main features are the following:

  • Start/pause/resume the stopwatch widget
  • Laps recording: you can capture the stopwatch time when you want and add a note to it
  • Lap times sorting: you can easily find the shortest lap time or the longest one
  • Reset the stopwatch widget and the lap times
  • Time format settings: you can choose the stopwatch granularity
  • Times saving and resuming: you can save the stopwatch status and resume it later
  • Font customization: you can choose the fonts for each of the stopwatch digits
  • Color customization: you can choose the color for the stopwatch digits and the stopwatch background
  • Lap times export: you can export the lap times on a file using the JSON or CSV format

Kronometer is part of the KDE community.


  • Kronometer latest version: 2.1.1
  • Source code: kronometer-2.1.1.tar.xz
  • SHA256: ecb182e6ef6cf33a7c3a068edb6ac243caa43ff386f1c331bb3a2d197eae4b00
  • Mirrors: go to the mirrors page

Older versions are available in the kronometer downloads page. The website for the old KDE4 version of Kronometer is here.


Click on the icon of your distribution:

Arch Linux Gentoo KaOS NixOS Compile from sources

Arch Linux

Kronometer is available in the AUR:

$ git clone
$ cd kronometer
$ makepkg -sri


# emerge x11-misc/kronometer


$ kcp -i kronometer


$ nix-env -iA kde5.kronometer

This currently works only on nixos-unstable, waiting for the upcoming 16.09 NixOS release.

Compile from sources

The following installation instructions are distro-agnostic, i.e. they should work on all the Linux distributions.

  1. Download the latest source files archive from the link above
  2. Extract the archive in your preferred directory
  3. Open a terminal in that directory and run the following commands:
$ mkdir build && cd build
$ cmake -DCMAKE_INSTALL_PREFIX=`qtpaths --install-prefix` ..
$ sudo make install

Now you should have Kronometer installed under /usr/bin and it should be available under the Utility entry in the Application Launcher of Plasma (or any other XDG-compliant menu).

Software dependencies:

  • Qt 5.0.0 or above, only the following modules:
    • QtCore
    • QtGui
    • QtWidget
  • KDE Frameworks 5.15.0 or above, only the following modules:
    • KF5Config
    • KF5DocTools
    • KF5I18n
    • KF5WidgetsAddons
    • KF5XmlGui
  • CMake 3.1 or above
  • Extra CMake Modules 1.6.0 or above
  • GCC or Clang.

Screenshots and video

Go to the kronometer gallery page.


Go to the kronometer changelog page.


Please use the official KDE Bugtracking system if you find a bug. You can also use it if you have a feature request.


Kronometer provides a KDE-compliant documentation, which is available within the installed application by clicking Kronometer Handbook under the Help menu. The documentation is also available online on the KDE servers:

  • Kronometer Handbook (HTML)
  • Kronometer Handbook (PDF)


Kronometer is part of the KDE community. If you want to contribute to the Kronometer development, you are encouraged to join the KDE world. Check out these FAQs. The git repository is located here and is also quickly browsable here.

Code browser

If you want to browse the kronometer sources, you can do it here. Please refer to this blog post for more info about the Woboq Code Browser and its license.


Doxygen documentation for the kronometer source code is available here.