WooCommerce: Display “FREE” Instead of $0.00 or Empty Price @ Single Product Page

In older versions of WooCommerce free prices used to display as “FREE!” and products with empty prices were not publishable/purchasable. Now they’ve changed this around, but I still believe “FREE” looks much better than “$0.00”. It’s much more enticing, isn’t it?

Well, here’s how you restore the old WooCommerce functionality – as usual it’s as simple as using a PHP filter provided by WooCommerce and overriding the default behavior.

PHP Snippet: Display “FREE” if WooCommerce Product Price is Zero or Empty – WooCommerce Single Product Page

/**
* @snippet       Display FREE if Price Zero or Empty - WooCommerce Single Product
* @how-to        Get CustomizeWoo.com FREE
* @author        Rodolfo Melogli
* @testedwith    WooCommerce 3.8
* @donate $9     https://businessbloomer.com/bloomer-armada/
*/
 
add_filter( 'woocommerce_get_price_html', 'bbloomer_price_free_zero_empty', 9999, 2 );
  
function bbloomer_price_free_zero_empty( $price, $product ){
    if ( '' === $product->get_price() || 0 == $product->get_price() ) {
        $price = '<span class="woocommerce-Price-amount amount">FREE</span>';
    }  
    return $price;
}