Sonarr
Automatic TV Shows downloader and manager for Usenet and BitTorrent. It can grab, sort and rename new episodes and automatically upgrade the quality of files already downloaded when a better quality format becomes available.
The software monitors RSS feeds from Usenet and BitTorrent sources to locate new episodes of TV series, then automatically downloads, sorts, and renames them according to user‑defined patterns. It can also scan an existing library, fetch missing episodes, and replace files with higher‑quality versions when they become available, handling failed downloads by trying alternative releases.
It targets users who maintain personal media collections and want a self‑hosted, open‑source solution for automated TV show acquisition. The application runs on Windows, Linux, macOS, Raspberry Pi and other platforms, and integrates with download clients such as SABnzbd and NZBGet, as well as media servers like Kodi and Plex for notifications and library updates.
Distinctive aspects include fully configurable quality profiles, calendar and series views, manual search for specific releases, and automatic handling of failed downloads. The project is released under GPL‑3.0, requires no subscription, and provides a built‑in updater and web‑based UI.
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