This is a list of applications written for KDE and sorted by categories. The categories that are used are almost the same KDE itself uses:

Development tools

• Cervisia - CVS frontend
• KDevelop - Integrated Development Environment (IDE)
• Kompare - graphical frontend for diff (comparing two versions of a text files)
• KDiff3 - 3-way comparison and merging tool
• Quanta Plus - web development
• Umbrello UML Modeller - UML Diagram Drawing
• KDialog - Command line dialog tool.

Editors

• Kate - Text editor
• Kedit - A simple text editor with few features, similar to windows' notepad
• Kwrite - Text editor
• Kile - LaTeX-editor

Edutainment

• KStars - Desktop Planetarium (accurate graphical simulation of the night sky)
• Kiten - Japanese study tool
• KLAid - Study tool that pops up flashcards while your using the PC.
• Konjue - Tool to conjugate and deconjugate French verbs.

For a full list, see kdeedu - KDE Edutainment Project

Games

• KAtomic - Puzzle game
• KFoulEggs - Puyopuyo game
• KMines - Minesweeper game
• Kolf - Golf game
• KReversi - Othello/Reversi game
• KSirtet - Tetris game
• Klickety - Puzzle game

For a full list, see Kdegames - KDE Games

Graphics

• Kolourpaint - small paint program
• KPovModeler - modeling and composition program for creating POV-Ray scenes
• KSnapShot - Screenshot tool

Internet

• KMail - Email client
• KNode - Usenet newsreader
• Konqueror - File manager and web browser using KHTML
• Kopete - Instant messaging
• KNetLoad - Network load graph viewer

Multimedia

• amaroK - Audio player and music manager with numerous integrated features
• ARts Builder - Application for building custom mixers, synthesizers, etc.
• JuK - Jukebox and music manager
• K3b - CD and DVD burning application
• Noatun - Multimedia player
• KDEnlive - Video editor

Office

• Kexi - Integrated Environment for Managing Databases
• Kile - integrated LaTeX environment
• KPresenter - Presentation application
• KSpread - Spreadsheet
• KWord - Word processor

See also: KOffice - Office Suite

System

• KDE System Guard - Enhanced task manager and system monitor
• Kinfocenter - Information about your computer
• Konsole - Terminal emulator
• KDM - Login manager
• KDE Control Center - Centralised system configuration tool

Personal Information Management

• KMyMoney - Personal finance manager
• Kontact

Toys

• Karamba - Desktop applets program.
• KTeaTime - Tea cooking timer.
• KWorldClock - Display the time anywhere on earth.
• AMOR - Amusing Muse Of Resources. Desktop creature.
• Kodo - Measure how far you move your mouse.

Utilities

• Ark - Archiving tool
• KCalc - Calculator
• KCharSelect - Character tool
• KDiskFree - Disk space information
• KHexEdit - A Hex Editor
• Kooka - Scanner utility