YouTube Kids Safe is a free Chrome extension developed by Endean.co. It is designed to make YouTube a safer place for kids by blocking most activities on the platform, while allowing parents to pre-approve individual YouTube channels for their children to watch.

With this extension, parents can remove the search bar, block access to YouTube Shorts, comments, trending videos, recommended videos, and subscribe buttons. It also redirects all manual URL entries and attempts to navigate to unauthorized areas. The result is a clutter-free and distraction-free YouTube user interface for kids.

To use the extension, parents need to register a supervised child Google account with Google via the Google Family Link app. They can then login to Google or YouTube using the child account. Parents are encouraged to sit down with their child and discuss the types of channels and videos they want to watch. Once they are happy with a channel's content, they can subscribe their child to that channel. There is no limit to the number of channels parents can subscribe their child to.

Overall, YouTube Kids Safe is a valuable tool for parents who want to ensure a safer YouTube experience for their kids. By blocking unwanted elements and providing a controlled environment, it gives parents peace of mind while allowing their children to enjoy approved content on YouTube.