Jellyfin & Emby

Librariarr supports Jellyfin and Emby as media server backends alongside Plex.

Setup

1. Go to Settings → Media Servers
2. Click Add Server and choose Jellyfin or Emby
3. Enter connection details:
   • URL: Your server’s base URL, including http:// or https:// (e.g., http://192.168.1.100:8096)
   • API Key: An API key from your server
   • Skip TLS verification: Enable for self-signed certificates
4. Click Test — Add Server stays disabled until the test passes
5. Click Add Server, then select which libraries to sync

The API key is an admin key: it can delete media and shut the server down. So changing a server’s URL, or turning on Skip TLS Verification, without entering a new key needs a sign-in from the last 15 minutes — the saved key would go to the new address, or to whoever answers there unverified. If it has been longer, Librariarr asks you to confirm it’s you and then carries on.

Getting an API Key

Jellyfin

1. Open Jellyfin Dashboard
2. Navigate to API Keys (under Advanced)
3. Click Add and name it “Librariarr”
4. Copy the generated key

Emby

1. Open Emby Server Dashboard
2. Navigate to API Keys
3. Create a new key named “Librariarr”
4. Copy the generated key

Synced Data

The same metadata is synced as with Plex:

• Core metadata (title, year, ratings, genres, etc.)
• Video, audio, and subtitle stream details
• File information and external IDs
• Play counts and history, from every user’s played items (or from Tracearr, if you map the server to it)
• Favorites — an item marked as a favorite counts as watchlisted in Librariarr

Feature Parity Notes

Most Librariarr features work identically with Jellyfin and Emby. However, some features have differences:

Feature	Plex	Jellyfin/Emby
OAuth login	Yes	No (API key only)
Server discovery	Automatic	Manual URL entry
Active stream monitoring	Yes	Yes
Maintenance mode	Yes	Yes
Preroll support	Native (Plex Pass)	No — the Preroll Manager is Plex-only
Lifecycle collections	Yes	No — Plex-only
Transcode management	Yes	Yes
Real-time sync of added items	Yes	Yes — the item’s library is resolved from its parent chain

Note

Plex OAuth remains the primary authentication method for Librariarr itself. Even when using Jellyfin or Emby as your media server, you can use Plex OAuth to log in to Librariarr, or use local authentication as an alternative.

Multi-Server Setup

You can connect multiple servers of any type simultaneously:

• Multiple Plex servers
• Plex + Jellyfin
• Plex + Emby
• Any combination

When the same media exists on multiple servers, Librariarr’s deduplication system handles it automatically.

Limitations

• No auto-discovery for Jellyfin/Emby — you must enter the URL manually
• Some metadata fields may differ slightly between server types due to different APIs
• The Preroll Manager and lifecycle-managed collections only work with Plex servers
• Only libraries whose content type is Movies, Shows or Music are synced. A mixed content library has no content type and is skipped; if you change an existing library’s content type to mixed, it is removed from Librariarr on the next full sync like any library the server no longer reports as one of those three
• Watch history comes from each user’s played-items list, so it carries play counts and last-played dates but not the per-play timestamps Plex provides. If a user’s list cannot be fetched during a sync, the previous history is kept rather than partially replaced; a user the API key cannot read is skipped and logged