Or just add this as a bookmark
```js
javascript:(function(){ window.open('http://0.0.0.0:' + window.prompt('For http://0.0.0.0: input a port number..','')); })();
```
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Bookmarklets</title>
</head>
<body>
<ul>
<li>
<a href="javascript:(function(){ window.open('http://0.0.0.0:' + window.prompt('For http://0.0.0.0: input a port number..','')); })();">http://0.0.0.0:PORT</a>
For local developments, input a port number than opens the adress with a port
</li>
<li>
<a href="javascript:(function(){ window.open('http://localhost:' + window.prompt('For http://localhost: input a port number..','')); })();">http://localhost:PORT</a>
For local developments, input a port number than opens the adress with a port
</li>
</ul>
</body>
</html>