Without using any WordPress plugin you can easily remove query strings from your assets with a few lines of code. Simply add the following to your WordPress theme functions.php file.
/** * Remove query string from static resources. */ function remove_query_strings() { // Check if admin backend. if( ! is_admin() ) { add_filter( 'script_loader_src', 'remove_query_strings_version', 20 ); // Remove query string of JS static resources add_filter( 'style_loader_src', 'remove_query_strings_version', 20 ); // Remove query string of CSS static resources } } /** * Hooks for splitting url to query and return only the resources static url. */ function remove_query_strings_version( $src ){ $arr = preg_split( "/(&ver|\?ver)/", $src ); return $arr[0]; } add_action( 'init', 'remove_query_strings' );