When you log into Deezer via a web browser or mobile app, the platform’s servers generate a unique session identifier. For standard web browsing, this is often stored in cookies. However, for Deezer’s API (Application Programming Interface)—which powers features like playlist synchronization, track streaming, and user data retrieval—the ARL token is the preferred method.
If you want a local backup of your Deezer library (song metadata, not actual audio files due to DRM), scripts like deezer-py or Deemon require the ARL token to authenticate. Deezer Arl Token
: Tools like Deeztracker Mobile and SoulSync use the ARL to download FLAC or high-quality audio. When you log into Deezer via a web