Universal Now Playing Companion is a Chrome extension that works in conjunction with the desktop application, Universal Now Playing. Designed for streamers, this browser helper allows them to share the music they are currently listening to with their stream viewers. By updating a text file, the extension enables streamers to use the information as an input source in OBS or Xsplit.

The extension retrieves data from various web pages such as YouTube, Soundcloud, and Web Spotify, and sends it to the desktop client. However, it is important to note that the desktop client must be open for the extension to function properly.