A private tool its owner uses to edit the details of videos on their own YouTube channels (title, description, visibility, languages, thumbnail) through the YouTube Data API.
The tool runs only on its owner's computer. It is not offered to anyone else. The sign-in it receives from Google stays on that computer and is used only to change the owner's own videos. No data is collected, stored elsewhere, sold or shared.
For the owner's personal use only. It follows the YouTube Terms of Service.