This is the basic list of Free Softwares avaible in a GNU/Linux Distribution.
- Complete Gnome App List from GNOME Website
- Complete KDE App List from KDE Website
Basic Text Editor
- Gedit - This is the editor comes with GNOME. It can be configured as a programmers editor using plugins
- Kate - This is the editor comes with KDE. It is basicaly provide an editor framework for multiple editors
- KWrite - Basic text editor with KDE. This editor uses Kate Framework.
- Leafpad - Light weight text editor.
Image Viewers
- Image Viewer aka The GNOME image viewer (Eye of Gnome). - this is the image viewer comes with GNOME. Website
- Gwenview - Image viewer comes with KDE.
- Shotwell - Features rich image viewer which allows basic photo editing.
- gThumb - Image viewer and editor. Website
Web Browsers
- Firefox - The default web browser for most GNU/Linux Distros. website
- Web aka Gnome web - A Web browser from GNOME team based on Webkit. website
- Midori - Light weight web browser. website
- Chromium - Open Source project by google.
Video Players
- VLC - The complete video player for Linux. Can handle almost all video formats.
- SMplayer - A GUI for Mplayer
- Videos - Gnome Video player
- MPV Media Player - Media player using MPV framework
- Parole - A Light weight media player from XFCE.
Music Players
- Elisa - Music Player for KDE
- Rhythmbox - Music Player for Gnome
- Audacious - A minimalistic music player
- Lollypop - Music Album manager and player
Office Software
- Libreoffice - Fork of Open Office. Complete Office package. Text Editor, Spread Sheet Editor, Presentation Maker, Database Editor, Drawing, Math Formula Editor etc.
- Onlyoffice - free software office suite developed by Ascensio System SIA, a company headquartered in Riga, Latvia.
- Calligra - Office suite from KDE
- Abiword - Wordprocessing Software
- Gnumeric - Spreadsheet processing software
Document Viewers
- Evince - Document viewer for gnome. Website
- Okular - Document viewer from KDE
- Foliate - A simple and modern eBook viewer
- Calibre - Advanced ebook reader.
- GNOME Books - Gnome based Book Manager and reader.
File Manager
- Nautilus aka files - Filemanager from Gnome
- Dolphin aka files - Filemanager from KDE
- Thunar - File Manager from XFCE
- PCMan File Manager - File manager from LXDE
- XFE - Light weight fast file manager
Download Managers
- Gwget
- Kget
- Transmission
Torrent Clients
- Qbittorrent
- Transmission
Screen Shot tools
- Flameshot
- Spectacle
Screen Recorder and Webcam
- Peek - Screen recorder produce gif files. Website
- Simple Screen Recorder
- Cheese - Webcam player for GNOME
- Kamoso - Webcam player for KDE
Note Taking App
- Gnote - Gnome Note Taking App
- KNotes - KDE Note Taking App
- Notes - Gnome Note App
- Zim - Desktop Wiki
Email App
- Thunderbird
- Evolution
- Geary
- KMail - Mail client for KDE
Communication Softwares
- Element - Matrix Client with end to end encryption
- Nheko - Client for Closed source Telegram Server
Mobile Remote Control
- KDE Connect - Connect from Android Phone in KDE
- GSConnect - Connect from Android Phone in Gnome
- KORE - Remote Control for Kodi.
Calendar
- Calendar - Gnome Calendar App
- Planner - Calendar App
RSS Reader
- Feeds - Gnome Feed Reader App
- Liferea - Rss Reader
- Akregrator - Rss Reader from KDE
- NewsFlash - Rss Reader for Gnome
- FeedReader - RSS Reader
Terminal Emulator
- Gnome Terminal - Terminal app for Gnome
- Konsole - Terminal app for KDE
- Tilix - Tiling terminal app
Photo Editors
- Darktable - RAW Image editor and photo cleaner.
- Rawtherapee - RAW Image editor.
- GIMP - Advanced Photo and Image editor
- Krita - Photo Editor and Digital Painting software
Vector Graphics Editors
- Inkscape
- Karbon
- Libreoffice Draw
Video Editor
- KDENlive
- Flowblade
Audio Editors
- Audacity
- Hydrogen
DTP Software
- Scribus
3D
- Blender
2D Animation
- Synfig Studio
- Blender
- OpenToonz
VFX
- Blender
- Natron
Text Editor
- Geany
- Atom
- Codelite
- KomodoEdit
- Gnome Builder
IDE
- Emacs - Spacemacs
- QT Creator
- Kdevelop
- Neovim