Haruna
Haruna is a simple and customizable video player with the ability to play videos from YouTube and PeerTube. A free and open source program
traGtor
traGtor – free and open source audio and video file converter, GUI for FFmpeg
Dialect
Dialect is a free and open source translation software for GNOME Linux
FreetuxTV
FreetuxTV – free and open source application for viewing and recording TV channels, listening to radio for Linux
KFind
KFind is a free and open source utility for searching files by name, type, and content for Linux
Ace Stream
Ace Stream is a peer-to-peer multimedia streaming protocol, built using BitTorrent technology
FreeTube
FreeTube is a free and open source, multi-platform, privacy-focused YouTube desktop client
Audacious
Audacious is a free and open source, multi-platform, simple, lightweight and advanced music player
DeaDBeeF
DeaDBeeF is a free and open source, multiple-platform modern, simple and minimalist modular audio player
Nuclear
Nuclear is a free and open source, multi-platform modern music player focused on streaming from free sources