YouTube Study Focus is a free Chrome add-on developed by nao_hanpen that aims to help users stay focused on their studies by displaying a warning before playing non-educational videos on YouTube.

While there are numerous educational channels on YouTube, there are also plenty of tempting and entertaining content that can distract users from their study goals. This add-on serves as a useful tool to remind users of their study intentions by alerting them when they are about to play videos that have not been confirmed as educational.

In the future, YouTube Study Focus plans to offer additional features such as the ability to customize warning messages and a user-specific whitelist for permitted channels.