Gumpress is a wordpress plugin which integrates your Gumroad products and checkout system. You can import all of your Gumroad product into your WooCommerce website.

Just Log in to your wordpress admin dashboard, Go to Gumpress plugin page from sidebar menu. Then press the button Sync products. This will automatically import all of your Gumroad products. You can use any WooCommerce shopfront/theme to display and sell your gumroad product.