I agree that HTML format has some strengths, but if you're working with data in javascript, there's a lot of strengths to a json format as well. Personally, I d

I agree that HTML format has some strengths, but if you're working with data in javascript, there's a lot of strengths to a json format as well. Personally, I do store json data in my database (in a jsonb postgres column, which gives me some query capabilities that aren't necessarily available operating on html strings in the database). I also agree, though, that this leads to some degree of lock-in. You'd have to write a transformer to convert to your new framework, but that's not particularly hard. Ultimately, though, the way I think about it is: react, angular, ember, vue all work by converting a JSON representation of state into a dom tree. So, an editor doesn't really need to be much different, as long as render times are fast, having an internal representation that's projected on to the DOM is a pretty common pattern.