XDrawChem
- A two-dimensional molecule drawing program utilizing the Qt-Library.
- http://xdrawchem.sourceforge.net/

KMol
- A molecular weight and elemental composition calculator.
- http://gountchev.net/kmol.html

KBibTeX
- A BibTeX editor for KDE.
- http://www.unix-ag.uni-kl.de/~fischer/kbibtex/

kmplot
- A mathematical function plotter for the KDE-Desktop
- http://home.foni.net/~kdmoeller/kmplot/

krot
- A program for the display and analysis of HRLIF spectra. Calculation of spectra including centrifugal distortion, torsion-rotation interactions, axis reorientation. Auto- and cross-correlation of spectra and simulations.
- http://www.unc.edu/~jochen/computer/software/krot/

KSEG
- A program for exploring Euclidean geometry.
- http://www.mit.edu/~ibaran/kseg.html

KMatplot
- A gnuplot-like tool for plotting data sets in both two or three dimensions.
- http://kmatplot.sourceforge.net/

K Polish Notation Calculator
- A reverse polish notation scientific calculator.
- http://kpncalc.sourceforge.net/

MathPlanner
- A mathematical design and publishing tool.
- http://koti.mbnet.fi/jarmonik/MathPlanner.html

Genes
- A personal genealogy database manager, will use the GEDCOM file format in the future.
- http://genes.sourceforge.net/

KDMM - Measuring with Digital Multimeters
- An application to use digital multimeters with serial interface (RS 232) together with your computer.
- http://kdmm.sourceforge.net/

Kemistry
- A collection of chemistry application for the K Desktop Environment.
- http://kemistry.sourceforge.net/

KLogic
- KLogic is an application for easy building and simulating digital circuits.
- http://www.a-rostin.de/klogic/

Kfem
- Software to perform Finite Elements Method calculations.
- http://kfem.sourceforge.net/

Kpl
- A program for two-dimensional graphical presentation of data sets and functions.
- http://frsl06.physik.uni-freiburg.de/privat/stille/kpl/

KSciPlot
- An application to plot mathematical functions.
- http://ksciplot.sourceforge.net/

KSimus
- A KDE tool for simulation, automatization and visualization of technical processes. It is also useful for education and experiments in the scope of logical and automatic control circuits. Documentation, Screenshots, News, Download.
- http://ksimus.berlios.de/

ViPEC Network Analyzer
- A powerful tool for the analysis of high frequency, linear electrical networks.
- http://vipec.sourceforge.net/

samplin
- Scientific Data Acquisition, Visualization and Process Control software for Linux and other unix platforms.
- http://mbox.troja.mff.cuni.cz/~kvasnica/samplin/