https://www.youtube.com/index?app=desktop&desktop_uri=%2F%3Fgl%3DJP%26hl%3Dja&hl=ja&gl=JP

html.cafe - a realtime HTML editor and host

https://www.youtube.com/index?app=desktop&desktop_uri=%2F%3Fgl%3DJP%26hl%3Dja&hl=ja&gl=JP Edit the html in the top panel, see the result here.
Save your page and get a link to view it live, anywhere.