How to change opencart website URL?

If you transfer opencart site to any other domain then you need to change config URLs. For this; open config.php file in your favorite editor. This file is on root of your opencart directory.

 
// HTTP
define('HTTP_SERVER', 'http://your-domain.com/');
define('HTTP_IMAGE', 'http:// your-domain.com/image/');
define('HTTP_ADMIN', 'http://your-domain.com/admin/');

// HTTPS
define('HTTPS_SERVER', 'http://your-domain.com/');
define('HTTPS_IMAGE', 'http://your-domain.com/ image/');

You have to change these settings in admin folder too.