Kubernetes command-line tool

https://github.com/derailed/k9s

Makefile framework

https://svn.netlabs.org/kbuild

System to administer web accounts for the KDE desktop

https://projects.kde.org/projects/kdereview/kaccounts-integration

Kanji-Kana Simple Inverter, language filter for Japanese

http://kakasi.namazu.org/

Digital camera manager for KDE

https://www.kde.org

Letter order game for KDE

https://www.kde.org/applications/education/kanagram

Japanese kana (Hiragana and Katakana) simple flashcard tool

https://kanatest.sourceforge.io/

Pac-Man Clone

https://www.kde.org/applications/games/kapman/

Free Unicode font for Sinhala script

http://www.kaputa.com/slword/kaputaunicode.htm

Dictionary management tool for anthy

http://kasumi.sourceforge.jp/

Dictionary management tool for anthy-unicode

https://github.com/fujiwarat/kasumi-unicode/

Basic editor framework for the KDE system

https://kate-editor.org/

Sokoban-like Logic game

https://www.kde.org/applications/games/katomic/

Displays large Japanese letters on the standard output

http://kanji.zinbun.kyoto-u.ac.jp/~yasuoka/program.html

Blackbox Logic game

https://www.kde.org/applications/games/kblackbox

Falling Blocks game

https://www.kde.org/applications/games/kblocks/

Ball Bouncing game

https://www.kde.org/applications/games/kbounce/

Breakout-like game

https://www.kde.org/applications/games/kbreakout/

KDE application to exercise fractions

https://www.kde.org/applications/education/kbruch

Scientific calculator for KDE

https://utils.kde.org/projects/kcalc/

KDE utility and user interface functions for accessing calendar

https://www.kde.org/

Kanji code conversion Filter

Minimal sandboxed CGI library in C

https://kristaps.bsd.lv/kcgi/

Character selector for KDE

https://utils.kde.org/projects/kcharselect/

KDE viewer for CHM files

https://www.kchmviewer.net/

Handy utility to show codepoint information of given characters

https://www.irori.org/tool/kcode.html

KDE application to select colors from the screen or from a palette

https://www.kde.org/applications/graphics/kcolorchooser

Qt-based color picker library with popup menu

https://github.com/ksnip/kColorPicker

KDAB's Dock Widget Framework for Qt

https://www.kdab.com/development-resources/qt-tools/kddockwidgets/

Accessibility applications for KDE

https://apps.kde.org/categories/utilities/

Support for KDE to interface between your phone and your computer

https://community.kde.org/KDEConnect

Mobipocket plugins for Strigi indexing and thumbnails

https://invent.kde.org/graphics/kdegraphics-mobipocket

SVG KPart

https://www.kde.org

FFmpeg-based thumbnail generator for video files

https://www.kde.org/

KDE Filesharing via Samba

Library to create business diagrams

https://projects.kde.org/kdiagram

Library to create business diagrams

https://projects.kde.org/kdiagram

Show nice dialog boxes from shell scripts

https://kde.org

Three-in-a-row game

https://www.kde.org/applications/games/kdiamond/

Program to quiz you on the meanings of Kanji

http://www.bolthole.com/kdrill/

C++/Qt SOAP framework

https://github.com/KDAB/KDSoap

Library for finding WS-Discovery devices in the network

https://invent.kde.org/libraries/kdsoap-ws-discovery-client

Alternative DHCP implementation by ISC

https://kea.isc.org/

Bookmark Organizer and Editor

https://kde.org

Light-weight and easy-to-use password manager

https://keepass.info/

KeePass plugin which facilitates the Kee Firefox plugin

https://www.kee.pm/

Portable scriptable network and serial communication program

https://www.kermitproject.org/

Library for registering keyboard shortcuts

https://github.com/engla/keybinder

Library for registering keyboard shortcuts

https://github.com/engla/keybinder

Open Collaboration Services API library

https://api.kde.org/attica-index.html