Airtable has a built-in feature that allows bulk uploading of files without the need for third-party tools. You can refer to this support article for more information:

https://support.airtable.com/docs/getting-started-with-airtable-gallery-views#using-drag-and-drop-to-add-an-attachment-to-a-record

However, it is important to note that this method only allows for the creation of new records through uploaded attachments.