Do you need the data to be anonymized or just de-identified? I know this won't sit well with privacy minded folks, but if you just need the data de-identified

Do you need the data to be anonymized or just de-identified? I know this won't sit well with privacy minded folks, but if you just need the data de-identified and not anonymized, you could pick the fields that might contain sensitive data and do a character for character swap. This way you retain the information without storing the personal information in a raw form.