Ethmerald uploader is the internal publishing tool of the Ethmerald YouTube channel. It is not offered to the public: the only account that authorizes it is the channel's own Google account.
YouTube Terms of Service
Ethmerald uploader uses YouTube API Services. By using Ethmerald uploader, you agree to be bound by the YouTube Terms of Service.
Privacy
What it accesses and stores, and how to revoke its access, is described in the privacy policy.