Lets be honest writing codes is nothing like typing regular text.
Though is not a huge factor for everyday coding. But I'd still love to have a tool help me with practicing to write codes. So I made that tool
. Although it doesn't have assessments of a full blown IDE, it's pretty decent and have syntax highlighting, preserving indentation and auto bracket closing feature. And its opensource so fell free to have a look at the codes.
You can play it here