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Aladin

Amide

Artha *

Ase

Awscli

Camotics

Converseen *

Cvsim

Datawarrior

Dozzaqueux

Drawtiming

Eyes17

Grassmarlin

Gravit

Gsmc

ltksnap

Leocad

Lios

Lutris *

Mayavi2

Metview

Mricron

Oce-draw

Openmeca

Openscada-ui-vcaengine

Openscada-ui-vision

Paraview

Pcb

Pcb-gtk

Praat

Sailcut

Saods9

Scram-gui

Simulide

Transcalc

Visolate

Voxbo

Wordnet-gui

Xcircuit

Xmedcon

Yagf

Age 3-6

Atomix *

Blinken *

Cheese *

Gamine

Gcompris *

Gpaint

Kanagram *

Khangman *

Kletters *

Ktuberling *

Mtpaint

Omnitux

Pencil2d

Pysiogame

Turing

Tuxpaint *

Xournal *

Xpaint

Age 6-14

Atomix *

Bambam

Cheesecutter

Childsplay

Denemo

Fracplanet

Gbrainy - https://wiki.gnome.org/Apps/gbrainy

Gcompris * - https://gcompris.net/

Gnome-chess * - https://wiki.gnome.org/Apps/Chess

Kalgebra *

Kalzium *

Kanagram *

Kbruch *

Kgeography *

Khangman *

Kidtopia-online

Kig *

Klettres *

Kmplot *

Kstars *

Ktouch *

Ktuberling *

Kturtle *

Kwordquiz *

Laby

Marble *

Minuet *

Musescore *

Numptyphysics *

Omnitux

Parley

Phet - https://phet.colorado.edu/ (also listed in Virtual Laboratory)

Psyogame

Pybik - https://launchpad.net/pybik/

PyChess - http://www.pychess.org/

Pysycache

Ri-li

Scratch

Stellarium *

Step *

Turing

Tuxmath

Tuxpaint *

Tuxtype

Vym *

Xball

Xmakemol

Xournal *

Age 14-18

2048-qt *

Alice3

Calibre *

Cantor *

Chemtool

Dia * - https://wiki.gnome.org/Apps/Dia (also in the Graphics/Drawing subcategory)

Einstein

Fritzing *

Inkscape * - https://inkscape.org/ (also in the Graphics/Drawing subcategory)

Kalgebra *

Kalzium *

Kbruch *

Kgeography *

Kig *

Kmplot *

Kstars *

Ktouch *

Ktuberling *

Kturtle *

Kwordquiz *

Laby

Lightspeed

Littlewizard

Marble *

Omnitux

Parley

Pencil2d

Phet - https://phet.colorado.edu/ (also listed in Virtual Laboratory)

Ri-li

Scratch

Step *

Tuxmath

Xaos

Age 18+

Alice3

Calibre *

Cantor *

Chemtool

Dia * - https://wiki.gnome.org/Apps/Dia (also in the Graphics/Drawing subcategory)

Fritzling *

Inkscape * - https://inkscape.org/ (also in the Graphics/Drawing subcategory)

Kalzium *

Kmplot *

Ktouch *

Kturtle *

Laby

Lightspeed

Marble *

Pencil2d

Rocs *

Scratch

Step *

Yorick

Mathematics

2048 *

Car-installer

Carmetal

Cinderella - https://www.cinderella.de/

Citadelle-online

Cymath-online

Desmosgeometry-online

Dmelt-online

DrGeo - https://www.gnu.org/software/dr-geo/

Dudamath-online

Epix

Euler - http://euler.rene-grothmann.de/

eXtrema - http://exsitewebware.com/extrema/

Freemat - http://freemat.sourceforge.net/

Galculator * - http://galculator.mnim.org/

Geogebra * - https://www.geogebra.org/

Geomview - http://www.geomview.org/

Geophar - https://sourceforge.net/projects/geophar/

Gnumeric *

Ipracticemath-online

Ixlmath-online

Kalgebra * - https://apps.kde.org/kalgebra/

Kbruch * - https://apps.kde.org/kbruch/

Kahnacademy-online

Kig *

King

Math-online

Math10-online

Mathhelp-online

Mathleys-online

Mathomatic - http://mathomatic.org/

Mathonline

Mathplanet-online

Mathplaygroundgames-online

Mathway-online

Model-builder

Octave *

Openmodelica

Optgeo - http://jeanmarie.biansan.free.fr/optgeo.html

Phet - https://phet.colorado.edu/ (also listed in Virtual Laboratory)

Pyromaths - https://www.pyromaths.org/

Qliss3d

Quickmath-online

Relational - https://github.com/ltworf/relational

Schoolyourself-online

Scilab

Scram

Singular

Smath

Socnetv

Symbolgraphing-calculator-online

Tuxmath

Webmath-online

Willeycollege-online

Wxmaxima * - https://wxmaxima-developers.github.io/wxmaxima/

Xaos

Physics

Bow-simulator

Energy2d

Energy3d

Edo-midas

Ginga

Ifrit

Lightspeed

Mocassin

Openmeca

Physics-chemistry-interactive-online

Step *

Virtualbow

Biology

Amide

Augustus

Ballview

Biogenesis

Bowtie

Clustalw

Clustalx

Critterding

Ctsim

Emboss

Icy

Imagevis3d

Itksnap

Jemboss

Mricron

Opensesame

Seaview

Sofa-apps

Starbiochem

Starorf

Tarquin-installer

Treeviewx

Virtual-microscope - http://virtual.itg.uiuc.edu/ (also in Virtual laboratory category)

Voxbo

Chemistry

Ase

Avogadro

Bist

Bkchem

Ch5m3d

Chemtool

Datawarrior

Dozzaqueux

Drawxtl

Easychem

Gabedit

Gamgi

Garlic

Gchempaint

Gcrystal

Gcu-bin

Ghemical

Gperiodic

Kalzium *

King-probe

Openbabel-gui

Pymol

Qutemol

Rasmol

V-sim

Viewmol

Xmakemol

Teacher

Fet

Teachertopia-online

Electronics

Abinit

Alliance

Arduino *

Caneda

Circuitlab-online

Drawtiming

Easyedaeditor-online

Easyspice

Eewebtools-online

Electric

Eyes17

Geda

Gerbv

Glogic

Gpsim

Graywolf

Gsmc

Gspiceui

Kicad *

Laserboy

Ngspice

Nitpic

Oregano *

Partsim-online

Pcb

Pcb-gtk

Picsimlab

Qflow

Simulide

Stlink-gui

Transcalc

Visolate

Wordnet-gui

Xcircuit

Geography

Aladin

AWeather - https://pileus.org/aweather/

CCDciel - https://sourceforge.net/projects/ccdciel/

Gaya Sky * - https://zah.uni-heidelberg.de/gaia/outreach/gaiasky

Glinga

Google-Earth - https://earth.google.com/web/

HNSKY - http://www.hnsky.org/software.htm

Kstars * - https://apps.kde.org/kstars/

Marble * - https://apps.kde.org/marble/

Nautic

Openuniverse - http://openuniverse.sourceforge.net/

Planets - http://planets.homedns.org/

Pysatellites - https://pysatellite.github.io/ ?

QGIS - https://www.qgis.org/en/site/

Saga - https://saga-gis.sourceforge.io/en/

Savi - https://savi.sourceforge.io/

Skychart - https://sourceforge.net/projects/skychart/ (also in the Astronomy category)

Stellarium * - http://stellarium.org/

Sumo - https://www.eclipse.org/sumo/

Survex - https://survex.com/

Therion

Thuban

Tunnelx - https://github.com/CaveSurveying/tunnelx

Virtualplanet - https://sourceforge.net/projects/virtualplanet/

Genetics

Artemis

Figtree

Gentle

Prank

Vglii - http://vgl.umb.edu/ (also listed in Virtual Laboratory)

Foreign languages

Anki * - https://apps.ankiweb.net/

Artha *

Babiloo - https://sourceforge.net/projects/babiloo/

Collatinus

Crow-translate

Gconjugue - https://github.com/jalvesaq/gconjugue

Jomegat

Langdrill - https://community.linuxmint.com/software/view/langdrill

Link-grammar *

Omagat-installer

Ucto

Verbiste-gtk *

Programming

Alice3

Android-studio-installer

Anjuta *

Arduino *

Atom *

Bluej

Code *

Codeblocks *

Codelite

Colobot-installer

Dbeaver-ce *

Eric *

Freeplane *

Geany *

Greenfoot

Idle3 *

Intellij-idea-community

Komodo *

Lazarus *

Paraview

Pycharm-community

Qtcreator *

Scratch

Shellcheck

Shellcheck-online

Spyder

Spyder3

Textstudio *

Turing

Architecture

Bricad

BRL-CAD - https://brlcad.org/

Freecad * - https://www.freecadweb.org/

Gcad3d

Gmsh

Leocad

Librecad - https://librecad.org/

Openscad - https://openscad.org/

Png23d

Sailcut

Solvespace

Sweethome3d - https://www.sweethome3d.com/

Robotics

Arduino *

Coppelia-lessons

Coppeliasim-edu-installer

Coppeliasim-player-installer

Gazebo9

Mblock

Morse-simulator

Mrpt-apps

Octovis

V-rep-player

V-rep-pro-edu

Statistics

Gephi

Glueviz

Gretl - http://gretl.sourceforge.net/

Pspp *

Qtiplot - https://www.qtiplot.com/

SciDAVis - http://scidavis.sourceforge.net/

Virtual laboratory

Achilles

Camotics

Code-saturne *

Gmat-installer

GNS3 - https://www.gns3.com/

Gravit

Hopsan-installer

Kolibri

Mars-simulator-project - https://mars-sim.sourceforge.io/

Minsky

Molecular Workbench - http://mw.concord.org/modeler/index.html

Openmeca

Openmodelica

OpenRocket - https://openrocket.info/

Phet - https://phet.colorado.edu/

Pinacotecabrera-online

Syrthes-gui

Tellurium-installer

Tvb

Vglii - http://vgl.umb.edu/

Virtual-Lab-Chemistry - https://chemcollective.org/vlabs

Virtual-microscope - http://virtual.itg.uiuc.edu/

Medicine

Aeskulap

Aliza

Amide

Anatomicalterms-online

Anatomycorner-online

Anatomylearning-online

Augustus

Biodigital-online

Bowtie

Camitk-imp

Caskviewer-microscop-online

Circos

Cronometer

Ctsim

Cvsim

Entangle *

Getbodysmart-online

Ginkgocadx

Gmic

Graphlan

Imagevis3d

Innerbody-online

Instantanatomy-online

Itksnap

King

Mia-viewit

Mialmpick

Mriconvert

Mricron

Mrtrix3

Openmolar

Poh-linux-installer

Praat

Sigviewer

Slicer

Sofa-apps

Weasis

Xmedcon

Zoouniverse-online

Zygotebody-online

Energy

Dice-online

Energy2d

Energy3d

Grassmarlin

Idat-online

Janis-online

Meshtal-viewer-online

Ndast-online

Openfoam

Openscada-ui-vcaengine

Openscada-ui-vision

Sensitivities-viewer-online

Sfcompo-online

Astronomy

Aladin

Astronomical-almanac

Ccdciel

Eqmodgui

Glab

Gnuastro

Indistarter

Siril

Skycat

Skychart - https://sourceforge.net/projects/skychart/

Topcat

Wxastrocapture

Engineering

Calculix-ccx

Calculix-cgx

Cba

Cgns-convert

Code-aster-gui *

Code-aster-run *

Code-saturne *

Esys-particle

Freecad * - https://www.freecadweb.org/ (also listed in Architecture)

Freefem

Gerris

Gfsview

Gmsh

Librecad - https://librecad.org/ (also listed in Architecture)

Mayavi2

Metview

Netgen

Oce-draw

Openfoam

Openmeca

Paraview

Pythoncad

Sailcut

Sasview

Scram

Solvespace

V-rep-player

Yade

Online resources

Anatomicalterms-online

Anatomycorner-online

Anatomylearning-online

Audio-joiner-online

Biodigital-online

Caskviewer-microscop-online

Circuitlab-online

Citadelle-online

Clipconverter-online

Convert-video-online

Cymath-online

Desmosgeometry-online

Dudamath-online

Easyedaeditor-online

Eewebtools-online

Extract-online

Getbodysmart-online

Gutenberg-online

Histography-online

Infotopia-online

Innerbody-online

Instantanatomy-online

Ipracticemath-online

Iseek-online

Ixmath-online

Kahnacademy-online

Kidtopia-online

Math-online

Math10-online

Mathhelp-online

Mathlets-online

Mathonline

Mathplaner-online

Mathplaybroundgames-online

Mathway-online

Mp3cut-online

Online-audio-converter *

Online-video-cutter *

Pdf24-online

Pdfescape-online

Phixr-online

Physics-chemistry-interactive-online

Quickmath-online

Refseek-online

Scholar-google-online

Schoolyourself-online

Symbolgraphing-calculator-online

Teachertopia-online

Virtuallrc-online

Webmath-online

Wileycollege-online

Zoouniverse-online

Zygotebody-online

Internet

Anydesk - https://anydesk.com/en

Chromium * - https://www.chromium.org/Home/

Ddgr

Discord *

Dropbox - https://www.dropbox.com/

Elinks

Empathy *

Enigmail

Epoptes

Evolution *

Exim4

Filezilla * - https://filezilla-project.org/

Firefox * - https://www.mozilla.org/en-US/firefox/new/ (default customized browser)

Googler - https://github.com/jarun/googler

Hexchat *

Konqueror *

Lynx *

Midori * - https://astian.org/en/midori-browser-desktop/

Mutt *

NoMachine - https://www.nomachine.com/

Opera - https://www.opera.com/

Palemoon * - http://linux.palemoon.org/

Pidgin *

TeamViewer - https://www.teamviewer.com/en/

Thunderbird *

Veyon - https://veyon.io/en/

Vivaldi-stable - https://vivaldi.com/

W3m

Sound and video

Acetoneiso *

Amsynth

Ardour *

Audacious *

Audacity *

Audio-joiner-online

Blender * - https://www.blender.org/ (also in the Graphics/3D subcategory)

Brasero *

Buzztrax

Cecilia

Clementine *

Clipconverter-online

Cmus

Convert-video-online

Flowblade *

Gpodder *

Gtk-recordmydesktop *

Guitarix *

Handbrake *

Helm

Hydrogen *

Immagination *

K3b *

Kazam *

Kino *

Kmplayer *

Lmms *

Mencoder

Milkytracker *

Mixxx *

Mkvtoolnix-gui *

Mp3cut-online

Mplayer *

Mplayer-gui *

Muse

Musescore *

Musique *

Obs-studio *

Online-audio-converter *

Online-video-cutter *

Openshot *

Paulstretch

Peek *

Pitivi *

Qtractor *

Quodlibet *

Radiotray *

Rhytmbox *

Rosegarden *

Simplescreenrecorder *

Smplayer *

Sonic-visualiser

Sound-juicer *

Soundconverter *

Streamtuner2 *

Totem *

Vlc *

Vokoscreen *

Webcamoid *

Xfburn *

Xmms2

Office

Abiword *

Abw2epub

Abw2odt

Atril *

Bibus

Calligra

Evince *

Fbreader *

Gnumeric *

Imath

Libreoffice *

Libreoffice-base *

Libreoffice-calc *

Libreoffice-common *

Libreoffice-core *

Libreoffice-draw *

Libreoffice-impress *

Libreoffice-math *

Libreoffice-writer *

Lyx *

Mupdf *

Odt2txt

Okular *

Pdf2djvu

Pdf2svg

Pdfchain *

Pdfcube

Pdfgrep

Pdfmod *

Pdfsam

Pdfshuffler *

Pdftk

Pstoedit

Softmaker-freeoffice-2018

Wps-office

Wps2odt

Xpdf *

Yagf

Graphics

Fiji - https://imagej.net/software/fiji/ (Fiji is just ImageJ, with extras)

ilastik - https://www.ilastik.org/

3D

Aqsis

Art-Of-Illusion - http://www.artofillusion.org/

Blender * - https://www.blender.org/

G3dviewer

K3d - http://www.k-3d.org/

Meshlab

Meshroom-installer

Structure-synth

Sunflow

Wings3d - http://www.wings3d.com/

Drawing

Dia * - https://wiki.gnome.org/Apps/Dia

Gimp * - https://www.gimp.org/

Gnome-paint *

Gtkmorph

Inkscape * - https://inkscape.org/

Kolouroaint *

Kover

Krita *

Kruler *

Latexdraw

Mtpaint

Qelectrotech *

Synfigstudio - https://www.synfig.org/

Tuxpaint *

yEd - https://www.yworks.com/

Photography

Camera app

Darktable - https://www.darktable.org/

Digikam *

Entangle *

Eog *

Gliv

Gpicview *

Gthumb *

Gtkam *

Gwenview *

Kphotoalbum *

Ristretto *

Shotwell *

Showfoto *

Ufraw

Publishing

Kile *

Scribus *

Texmaker *

Scanning

Gscan2pdf *

Hocr-gtk

Scantailor *

Simple-scan *

Skanlite *

Xsane *

Viewers

Aeskulap

Apvlv

Aqsis

Calibre *

Djview3

Djview4

Eog *

Evince *

Fbreader *

Feh *

Geeqie *

Gpicview *

Gthumb *

Gtkam *

Gv

Gwenview *

Kchmviewer *

Meshlab

Mirage *

Nfoview

Nomacs *

Okular *

Preview.app

Qcomicbook

Ristretto *

Xchm *

Yorick-cubeview

Games

3dchess

Airstrike

Atanks

Biloba

Bovo *

Brainparty

Brutalchess

Cgoban

Freeciv

Games-minesweeper *

Games-puzzle *

Gbrainy

Gcompris *

Gnome-sudoku *

Gnubik *

Kmines *

Kolf *

Kubrick *

Lutris *

Opencfu

Opencity - http://www.opencity.info/

Pybik

Rubiks

Warzone2100 - https://wz2100.net/

System tools

Atop

Balena-etcher-electron

Bleachbit *

Compizconfig-settings-manager

Cups-academix *

Diffuse *

Extract-online

Gadmin-samba

Gdebi *

Gdmap

Glances

Glogg *

Gosa

Gosa-desktop

Gparted *

Guake *

Htop *

Lynis

Meld *

Nvidia-settings *

Openbox

Parcelite *

Pdf-io-online *

Pdf-resizer-online *

Pdf24-online

Pdfescape-online

Rmlint

Rmlint-gui

Screen

Terminator *

Virtualbox-6.0 *

Wine *

Yakuake *