This Austrian site lets you create YouTube playlists without an account, just using your web browser.
Drag & Drop Playlist Creator allows you to put together a YouTube playlist and save the playlist as browser link (URL) that you can share with others, save in a folder in your browser, or add to the bookmark bar in your browser.
Having a link to a YouTube playlist that will play in a browser with no YouTube account is a useful way to bring your playlist with you. It worked fine with small to medium sized playlists but shouldn’t have trouble with larger lists.
Drag & Drop Playlist Creator is a great idea packaged in a minimal, easy to use interface, with or without a YouTube (Google) account.