metadata

Calibre is a powerful, cross-platform e-book library management application that can view, convert, edit, and catalog e-books in most major formats, with a built-in content server.

Lidarr is a music collection manager for Usenet and BitTorrent users. It monitors multiple RSS feeds for new tracks from your favorite artists and automatically grabs, sorts and renames them while monitoring for better quality downloads to upgrade existing files.

MetaTube automatically downloads music from YouTube and enriches it with metadata from Spotify, Deezer, or MusicBrainz. It provides intelligent music acquisition with comprehensive metadata enhancement for building high-quality music libraries.