• Post category:JavaScript
  • Reading time:3 mins read

In this post, I’ll teach you how to prevent website content from being copied using JavaScript, which means I’ll show you how to deactivate mouse right click and keyboard F12 key.

Simply use the following script to disable the Right click and F12 key.

    // disable right click
    document.addEventListener('contextmenu', event => event.preventDefault());

    document.onkeydown = function (e) {
        // disable F12 key
        if(e.keyCode == 123) {
            return false;

        // disable I key
        if(e.ctrlKey && e.shiftKey && e.keyCode == 73){
            return false;

        // disable J key
        if(e.ctrlKey && e.shiftKey && e.keyCode == 74) {
            return false;

        // disable U key
        if(e.ctrlKey && e.keyCode == 85) {
            return false;

We may disable the right click using the preventDefault() function in the contextmenu event with the help of the above code. F12, Ctrl + Shift + I, Ctrl + Shift + J, and Ctrl + U are also disabled.

Instead of the contextmenu event, You can also add the oncontextmenu handler into the HTML body tag to disable the right click. Take a look at the code below.

<body oncontextmenu="return false;">

I hope you find this article helpful.
Thank you for reading. Happy Coding..!!

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