I’m developing a WordPress plugin that backs up your entire Airtable account (as JSON, CSV, and optionally downloading any attachments). I intend to release it as Open Source when it’s done.
It’s not finished, and won’t be for a few months, but I’m interested in seeing how it works for others. Because it’s still in alpha stage, and I know there are security-related bugs, you’ll need to have a LOCAL web server with WordPress installed (i.e. one that’s not accessible on the internet).
If that’s you, and you’d like to help, please get in touch.