Since Lemmy doesn't host large videos or other media, users can share files using BitTorrent links. In BitTorrent, files are shared not by a single user, but by many users at the same time. This makes file sharing efficient, fast, and reliable, as long as several sources are sharing the files.

Lemmy supports posting torrent magnet links (links that start with magnet:) in the post URL field, or as Markdown links within comments.

With this, Lemmy can serve as an alternative to centralized media-centric services like YouTube and Spotify.