Mylar3

Mylar3 is the comic book equivalent of Sonarr. You add series you follow, and Mylar3 monitors your configured Usenet and torrent indexers for new issues. When a new issue of a tracked series appears, it triggers a download, renames the file according to your naming convention, and moves it to your library folder. If you follow ongoing series, this eliminates the manual work of checking for and downloading each new release.

The ComicVine integration handles metadata. When Mylar3 adds a series or imports a new issue, it queries ComicVine for cover art, issue descriptions, writer and artist credits, and publication details. The result is a library where each CBR or CBZ file has consistent, accurate metadata rather than whatever inconsistent naming came from the download source.

The tool fits into the standard self-hosted media stack. It manages downloads through SABnzbd or NZBGet for Usenet, or qBittorrent and Deluge for torrents. Prowlarr or NZBHydra2 handles indexer management so you configure your indexer credentials once rather than in every tool. Once files are imported, Kavita or Komga can serve them as a web-based reading interface.

The setup complexity reflects the ecosystem it belongs to. Before Mylar3 can do anything, you need a working download client, at least one indexer, and a Usenet subscription or torrent setup. For someone already running Sonarr, Radarr, and the associated infrastructure, adding Mylar3 is a familiar pattern. For someone new to automated media management, it is a meaningful time investment to get the stack working.

With 1.4k stars and active maintenance, Mylar3 is the default choice for self-hosted comic collection management.