The software listed below is both free and mostly available on all platforms.
Free Media Downloaders
- Youtube-dl is a free command-line YouTube downloader — it also can download from a few other sites — apps available for Windows, Mac and Linux
- MacX Youtube Downloader is a free Youtube downloader for MacOS — unfortunately the app opens a sales web page in your browser after each download
Free and Open-Source Media Converters
- Media Human Audio Converter is a free audio converter that supports many audio formats — apps available for Mac and Windows
- HandBrake is a free video converter (or transcoder) — apps available for Linux, Mac and Windows
Free and Open-Source Media Players
- VLC is an free media player — very full featured and configurable — apps available for Linux, Mac, Windows, Apple TV, mobile devices
- MPV is a free media player — it’s fast loading and lightweight — apps available for Linux, Mac, Windows, Android
- foobar2000 is a free audio player — apps available for Windows, Mac, iOS and Android
- FreeTube is a free YouTube player built with privacy in mind –apps available for Linux, Mac, Windows
- Plex is a media manager and media streamer — apps available Windows, Mac, Windows, iOS, Android, Apple TV, Roku and just about every other platform and device
Free Media Downloaders – 4k video downloader
Open-Source Media Players – SMplayer, Kodi