Lots of sites do this. Lately for me there's https://www.typescriptlang.org/play https://www.typescriptlang.org/play I'm mixed on it. It means it's mostly use

Lots of sites do this. Lately for me there's https://www.typescriptlang.org/play https://www.typescriptlang.org/play I'm mixed on it. It means it's mostly useless for having your own list of creations because you have to manually store the URLs (PITA) and you need to store them somewhere accessible if you want to repo the UX of the site actually storing them where you can more easily access them from anywhere.