Similar to GtkRadiant

Deno
Deno (software)
DesktopBSD
DesktopBSD
DeSmuME

Dev-C++
Dev-C++
Dia (ソフトウェア)
Dia (software)
Diff
Diff
Diff3
Diff3
DigiKam
DigiKam▲2 trends
DirectFB
DirectFB
DirectML

Discourse
Discourse (software)
Distcc
Distcc
Dlib
Dlib
Docker
Docker (software)▲2 trends
Dolphin (ファイルマネージャ)
Dolphin (file manager)
Dolphin (エミュレータ)
Dolphin (emulator)
Donut (ウェブブラウザ)

Donut RAPT

Dragon Player
Dragon Player
Drupal
Drupal▲2 trends
DSLinux

DSpace
DSpace
DuckStation

DVD Flick
DVD Flick
DVD Flick v2

Dvd+rw-tools
Dvd+rw-tools
Dviout

Dvipdfm
Device independent file format#DVI-to-PDF converters