The FinancialDataTools.com IIF to CSV Converter is a free, browser-based tool for converting QuickBooks IIF files to CSV format. It runs entirely in your browser — no file is ever uploaded to any server.
How It Works
Drop your IIF file onto the left panel or click Open to browse. Your source data is previewed in a table. Click Convert to CSV to generate the output in the right panel. Click Export CSV to download the result file.
Privacy and Security
All file processing happens inside your browser using JavaScript. No file content is transmitted to any server. Your financial data stays private on your device.
Is the IIF to CSV Converter free?
Yes, completely free with no signup required.
Does my file get uploaded to a server?
No. All processing is local in your browser. Nothing is uploaded.
What is an IIF file?
IIF (Intuit Interchange Format) is a tab-delimited text format used by QuickBooks to import and export financial data such as transactions, accounts, and lists.