Known for high accuracy, MoneyThumb offers a "2iif" suite. Their online tools are excellent for converting bank, credit card, and PayPal CSVs into importable IIF files.
Work directly from your browser on any operating system. Speed: Convert hundreds of transactions in seconds. csv to iif converter online link
While they are famous for their Excel Add-ins, they provide online resources and templates that simplify the CSV-to-IIF pipeline. How to Convert Your Files Online Known for high accuracy, MoneyThumb offers a "2iif" suite