converter.html

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>

  <div id="body">
  hello world
  <div>yay<img src="http://e1.ru/logo.jpg"></div>
  </div>

<script>
  var body = document.getElementById('body');
  //console.log(body)

  var children = body.childNodes;

  for(child in children){
      console.log(children[child]);
  }
</script>

</body>
</html>