I am using google blogger for quite long time [ almost two and half years ]. It's awesome service that we are getting for free.
But it's editor is quite problmatic, it adds
<div> and <br> unexpectldy. So its hard to manage view of
Blogger editor is built on top of Blogger API v3, Golang And VueJS. VueJS-wyswyg editor and VueBlock used for UI and editor.