I've just pushed a new Package SublimeTidyHTML that will allow you to cleanup your html files with the W3C Tidy HTML 5 parser.
My script doesn't require PHP nor Webservice calls (as in SublimeHtmlTidy).
It work smoothly on Portable SublimeText2.I hope you will find it handy.
I just tried installing this and couldn't get it to work. I'm on Windows and installed via Package Control. Ctrl+Alt+H does appears to do nothing. Any suggestions?