JavaScript hide URL

When developing web applications, it is sometimes necessary to hide or encrypt URLs to protect user data or certain features. JavaScript is a popular programming technique through which we can hide URLs and ensure the security of our applications. In this article, we will explain how to hide URLs using JavaScript.

There are many ways to hide URLs, the most popular of which is to convert the URL to base64 encoding. Base64 encoding a URL is a process of converting a readable string into a longer non-readable string, making the URL more difficult for attackers to guess since the average user won't know how to decode it.

To hide URLs using JavaScript, we need to write some code. Here are the steps to hide a URL using JavaScript and base64 encoding:

Step 1: Reference the JavaScript library

In the head of your HTML file, you want to include the JavaScript library, here we use base64. js library.

<script src="base64.js"></script>

Step 2: Convert the URL to base64 encoding

Use JavaScript's atob() and btoa() methods to convert the URL to base64 encoding. The code is as follows:

function urlToBase64(url) {
    var base64 = btoa(url);
    return base64;
}

Step 3: Decode the base64-encoded URL

In order to decode the base64-encoded URL into the original URL, we need to use JavaScript's atob() method. The code is as follows:

function base64ToUrl(base64) {
  var url = atob(base64);
  return url;
}

Step 4: Hide URL

In order to hide the URL, we need to convert the source URL to base64 encoding, and then use the JavaScript replace() method to replace the URL with base64 encoding. URL:

function hideUrl(url) {
    var baseUrl = urlToBase64(url);
    var hiddenUrl = window.location.href.replace(url, baseUrl);
    window.history.replaceState(null, null, hiddenUrl);
}

Step 5: Decrypt URL

If you want to display the actual URL over the hidden URL, you need to decode the base64 encoded URL back to the original URL and then replace it with the hidden URL URL. To decrypt a URL, use the following code:

function showUrl() {
    var hiddenUrl = window.location.href;
    var regex = /#(.*)/;
    var match = regex.exec(hiddenUrl);
    if (match) {
        var base64Url = match[1];
        var url = base64ToUrl(base64Url);
        var decodedUrl = window.location.href.replace(base64Url, url);
        window.history.replaceState(null, null, decodedUrl);
    }
}

Now we have covered how to use JavaScript to hide a URL and decrypt it when needed. While JavaScript can help us secure web applications, security is a complex issue, so you always need to take additional steps to keep user data and applications safe.

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