Custom HTML

Drop arbitrary HTML into the form, escape hatch for embeds, third-party widgets, and content the standard components don't cover.

The Custom HTML component injects raw HTML into the form. Treat it as an escape hatch: for an embed, a third-party widget, or a layout the standard components do not cover.

The HTML is sanitised against the standard allow-list (no scripts, no inline events). For full JavaScript control, write the logic in the form's JavaScript drawer using the

f365 API, not in Custom HTML.