Cast Kodi, as the name suggests, adds the ability to cast videos and music to Kodi:

direct links: avi, mkv, mp3, flac, ... and torrent / magnet;
YouTube, Twitch, Vimeo, SoundCloud as well as Ace Stream, Apple Podcasts, Bigo Live, BitChute, Blog Talk Radio, Castbox, Dailymotion, DevTube, Facebook, Flickr, Instagram, Jamendo, LBRY, LiveLeak, Megaphone, Metacafe, Mixcloud, My Cloud Player, Overcast, PeerTube, Pippa, podCloud, Pokémon TV, Radio, Radioline, Steam, Streamable, TikTok, Ultimedia, Veoh, VideoPress, Viously;
- Germany: Arte;
- Belgium: VRT NU, VTM GO;
- USA: KCAA Radio;
- France: 20 Minutes, AlloCiné, Arte, Arte Radio, France Inter, Futura Sciences, Gamekult, JeuxVideoCom, Konbini, Le Monde, Le Point, L'Internaute, Melty, Ouest-France;
- Greece: StarGR;
- Iran: آپارات;
- Iceland: Útvarp Saga;
- Netherlands: Dumpert;
- Russia: Первый канал;
- United Kingdom: Daily Mail, The Guardian.

Cast Kodi also analyzes the pages for videos, music or external platforms integrations. For example, if a page displays a YouTube video, this video will be sent to Kodi. To cast videos / music, three items can be added on context menu of link / page / selection of videos or audio: Play now to Kodi, Play next to Kodi and Queue item to Kodi. A remote (accessible with toolbar button) is also present to cast current tab to Kodi and to: pause, go to next element, adjust the volume, ... In Kodi, you must Allow remote control from applications on other systems. This option is on Settings / Services / Control. Then you must configure Cast Kodi Options by copying IP address of the server hosting Kodi; this information is displayed on Kodi's Settings / System information / Summary page.