index.html

<html>
<head>
  <title>Download urls to your phone!</title>
  <script>
    function update() {
      var url = document.getElementById("URL").value.replace(/\/$/, "");
      document.getElementById("dl").download = true;
      document.getElementById("dl").href = url;
    }
  </script>
</head>
<body>
  <h1>This site imitates the "save page as" function.</h1><br><h3>It probably won't work on Safari.</h3>
  <input id="URL" type="text" placeholder="URL" onchange="update()">
  <a id="dl" onclick="document.getElementById('URL').value=''">Download</a>
</body>
</html>