Selected Open Source Programs Type Open Source Program Comments Website Quantum GIS General purpose GIS http://www.qgis.org/ Research GIS, especially for gridded Saga data http://www.saga-gis.org/ GIS GMT - Generic Mapping Tool Command line GIS http://gmt.soest.hawaii.edu/ GDAL - Geospatial Data Abstraction Library Command line raster mapping http://www.gdal.org Scilab Like Matlab http://www.scilab.org/ Math Octave Like Matlab http://www.gnu.org/software/octave/ Sage Like Mathematica http://www.sagemath.org/ R Statistics, data processing, graphics http://www.r-project.org/ R Studio GUI for R http://rstudio.org/ Statistics PSPP Like SPSS http://www.gnu.org/software/pspp/ Gnu Regression, Econometrics and gretl Time-series Library http://gretl.sourceforge.net/ Complete office program: word processing, spreadsheet, presentation, Documents Libre Office graphics http://www.libreoffice.org/ Latex Document typesetting system http://www.latex-project.org/ Lyx WYSIWYG front end for Latex http://www.lyx.org/ gnumeric Small, fast spreadsheet http://projects.gnome.org/gnumeric/ Complete office program: word Spreadsheets processing, spreadsheet, presentation, Libre Office graphics http://www.libreoffice.org/ GNU Image Manipulation Program Like Adobe Photoshop http://www.gimp.org/ Inkscape Vector drawing like Corel Draw http://inkscape.org/ Graphics Dia Flowcharts and other diagrams like Visio http://live.gnome.org/Dia SciGraphica Scientific Graphing http://scigraphica.sourceforge.net/ GDL - GNU Data Language Like IDL http://gnudatalanguage.sourceforge.net/ Built in to Linux. http://www.finkproject.org/ for Data processing Mac OS, http://unxutils.sourceforge.net/ for gawk Language for parsing text files Windows Python General purpose language http://python.org/ Programming C, C++, Fortran Language compilers http://gcc.gnu.org/ Geany Simple IDE for many languages http://www.geany.org/ http://en.wikipedia.org/wiki/List_of_free_and_o Other sites Wikipedia Listing of Open Source Program pen_source_software_packages FLOSS for science Information about programs http://www.floss4science.com/ Open Source Alternatives Alternatives to closed source programs http://www.osalt.com/.