Viewing & Playing

Image

Nomacs
Eye Of Gnome
Eye Of MATE
Geeqie
gThumb
Gwenview
Loupe
KPhotoAlbum
Shotwell
Ristretto
digiKam

Video

MPV
MPlayer
SMPlayer
VLC
XBMC
Gnome Videos
Xine
ExMPlayer
Deepin Movie
Dragon Player
Celluloid
Parole
Haruna
Clapper
QMPlay2
Kaffeine

Audio & Music

Audacious
Rhythmbox
DeaDBeeF
Amarok
Clementine
Sayonara Player
Lollypop
Musique
Quod Libet
Museeks
Qmmp
Strawberry
Exaile
Guayadeque
Music on Console
Amberol

Editing & Design

Image

GIMP
Krita
KolourPaint
Pinta
DigiKam
ShowFOTO
RawTherapee
Fotoxx
Inkscape
LightZone
Darktable
UFRaw
Drawing

Video

KDenlive
HandBrake
Avidmux
Lightworks
Shotcut
HitFilm Express
DaVinci Resolve
OpenShot
Flowblade
Olive
Natron

Audio

Audacity
Ocenaudio
Tenacity
Borg ER-3
Borg ER-0

Music

Ardour
LMMS
REAPER
Rosegarden
Bitwig Studio
Renoise
Qtractor
Cecilia
Mixxx
Tracktion Waveform
Hydrogen
Guitarix
KWAVE
Muse
MuseScore
Traverso DAW
Jokosher
Sweep
WaveSurfer