Composer is more than an html editor. The pages I've done with it I've done only with the graphic editor (they call it the 'normal' tab) and have not had to do anything to the html code.
You would have to create pages one at a time, but it is free and easy. If I get serious about developing my web pages (more like, if I ever get enough time), I'd use Dreamweaver.
It really sounds like you want one of those online 'diary' web pages. My wife is currently writing three in different places. They are really easy to use and include all the 'site management' stuff. Unfortunately, all three are in Chinese, so I don't know where to send you to see one.