I had read a post from a few years ago saying there was plans for a tool to convert ACF fields to Metabox. Was this ever created? I couldn't find a reference to it anywhere else.
I've taken a project that has a custom field added to Woocommerce products via ACF. I'd like to add additional fields and CPTs using metabox.io but I'd prefer to convert the ACF field (and the contents of that field in 1,800 products) to a comparable metabox.io field. Then I can delete the ACF plugin.
I'm not sure the way ACF saves the complicated fields but for the simple fields such as text, number, email ... you can just create a Meta Box's custom field with the same field ID (ACF Field Name) and the corresponding field type to use the current field value of the post then deactivate the plugin ACF.