> For the complete documentation index, see [llms.txt](https://docs.mapbox.com/mapbox-search-js/llms.txt) # Add Address Autofill to an HTML form (Custom Elements) This example implements Address Autofill to automatically add suggestions to an existing HTML form. It uses the HTML custom element [``](https://docs.mapbox.com/mapbox-search-js/api/web/autofill/#mapboxaddressautofill) which is available from the `MapboxAddressAutofill` class. For other ways to use Address Autofill, see [Using Address Autofill](https://docs.mapbox.com/mapbox-search-js/guides/autofill/web/#using-address-autofill) from the Quick start guide. Using the `` HTML custom element makes it easy to add Address Autofill functionality without writing JavaScript and works well for simple applications. To use JavaScript to setup Address Autofill - see the [Address Autofill example](https://docs.mapbox.com/mapbox-search-js/example/simple-autofill) Address Autofill works with [browser HTML autocomplete tags](https://web.dev/learn/forms/autofill/) and form inputs must have `autocomplete` attributes declared for Address Autofill to work. **JavaScript** ```html Add Address Autofill to an HTML form (Custom Elements)

Shipping

Billing

```