Treat your ARL like a password. If someone gets it, they can stream on your account, change your settings, and potentially lock you out. Do not paste it into random Discord bots.
The desktop app is an Electron wrapper (resource heavy). The web player is limited to 320kbps AAC. And there is no API for direct hardware integration. deezer hifi arl
If this sounds too good to be true, it sort of is. Deezer is not stupid. Treat your ARL like a password
The ARL token became infamous due to its use in "stream ripping." Because the ARL allows direct access to the raw FLAC files on Deezer's servers, it became a primary method for pirates to download high-quality albums. Tools like and its successor Deemix utilized ARLs to download entire libraries. This created a significant security headache for Deezer, as it decoupled the content protection (DRM) from the playback mechanism. The desktop app is an Electron wrapper (resource heavy)
Tools using your ARL can push this high-quality audio to high-end DACs and sound systems that might not have native Deezer support. How to Get Your Deezer HiFi ARL (2026 Guide)
But if you are reading this blog, you are probably an audiophile or a homelab enthusiast.