Use the options below to customize a HubSpot form's embed code and edit a default HubSpot form. Before getting started, do take note of the following:

• These options are only available for forms created using the marketing form builder in Marketing Hub and CMS Hub Professional or Enterprise subscriptions.
• These options can only be used with forms that have been set as raw HTML.
• Other forms, such as collected forms or lead flows, do not support these customization options.

If you need complete control over the styles and actions of your form, you can use the Forms API. For more on how to generate an embed code on a form, check out HubSpot's Knowledge Base. For information on how to use the form that this embed code generates, please see the developer documentation.

Please Note If you're using jQuery to manipulate the values of form inputs (i.e. using val() or prop()), you must trigger a change event using change() or trigger('change') for the change to properly register.

Examples:
$('input[value="checkbox_1"]').prop('checked', true).change();
$('input[name="firstname"]').val('Brian').change(); 
    
If not using jQuery:
input.value = value;
input.dispatchEvent(new Event('input', { bubbles: true }));

For Checkboxes:
input.click()
    

Configuration options

Type legend:

• R - (required) This attribute must be provided for the embed code to work properly.
• I - (internal) Used internally by a HubSpot tool. Use with caution, as it will likely affect how this form behaves or how the submission data is processed.
• O - (optional) Optional form customization attribute intended for use by end-users.
• C - (callback) A callback function that will be executed at various points in the form's lifecycle.

Examples

Make labels/fields side-by-side instead of stacked

As the default CSS styling is 'stacked', i.e. labels atop inputs, removing the default classes on the form will result in an alignment of inputs to the right of their labels. To accomplish this, simply set your own custom cssClass that does not include the class 'stacked'. View the example in the right code pane.

Add internationalized error messages

HubSpot provides a number of custom validation messages in many different languages by default. View the example in the right code pane.

Customize internationalization

You can add custom languages or override the error messages and datepicker months/days displayed on the form by passing language objects into the translations parameter described above.

The embed code expects the format {locale: {messageKey: customMessage}}. You can override field labels by specifying the label as {locale: {fieldLabels: {fieldName: customLabel}}}, and the submit button text using {locale:{submitText: customSubmitText}} See the example in the right code pane.

To override existing messages, just pass in a language object with the desired locale found in the above table. For locales listed in the table above, you only need to provide the keys and messages you wish to override.

It's also possible to register new locale codes to use with the locale parameter. In this case, make sure to specify messages for all of the keys listed in the table below. Omitted keys will show a "missing translation" message in their place.