Change logo on WordPress login page without using any plugin

Here is a snippet that allows you to set a custom image on the WordPress login page and set a custom link:

// Change logo on wp-login.php

function my_custom_login_logo() { 
    echo '<style type="text/css"> 
    h1 a { background-image:url(https://your-domain.com/wp-content/uploads/2023/custom-logo.png) !important; } 
    </style>'; 
    } 
add_action('login_head', 'my_custom_login_logo'); 

// Change link on logo

add_filter( 'login_headerurl', 'custom_loginlogo_url' );

function custom_loginlogo_url($url) {
     return 'https://your-domain.com';
}

Replace