Any good HTML Editor for Android?

I'm looking for a good HTML editor for Android to use when commuting. It would be nice to edit HTML, CSS, PHP, JS etc in the same program. 

Preferably a ton of other features and free, any suggestions? 

I use droid edit, it easy to use and supports many different languages.

https://play.google.com/store/apps/details?id=com.aor.droidedit

Thanks, I'll try it out.