I made a 0.1 release of just this idea back in 2001, then abandoned it because I'm lazy: http://wry.me/~darius/software/idel/ http://wry.me/~darius/software/ide

I made a 0.1 release of just this idea back in 2001, then abandoned it because I'm lazy: http://wry.me/~darius/software/idel/ http://wry.me/~darius/software/idel/ Well, minus the asm.js, which I kind of wish I'd thought of at the time.