YouTube Monetization Checker by TubeLab is a Chrome add-on that provides users with the ability to check if any YouTube channel, video, or short is monetized. By adding an icon to YouTube's UI, this tool informs users about the monetization status of the content they are viewing.

The program operates by examining various indicators of monetized content, such as videos with custom ads, subscriber count, and sponsored content presence. It is important to note that while the tool offers valuable insights, it does not guarantee 100% accuracy. Additionally, channels focused on shorts may have slightly lower accuracy levels, but the tool should still function effectively. Users may occasionally need to refresh the page due to YouTube's UI layout changes.