mortido,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
$(function() {
let arr = $.map($(".container"), ({children : [{value : url}, {value : title}]}) => ({url,title}));
console.log(arr)
});
</script>
</head>
<body>
<div class="creatives">
<div class="container">
<input class="activeInput" type="text" name="url" value="123">
<input class="activeInput" type="text" name="title" value="312">
</div>
<div class="container">
<input class="activeInput" type="text" name="url" value="asd">
<input class="activeInput" type="text" name="title" value="das">
</div>
</div>
</body>
</html>