Is the JSON to IIF Converter really free?

Yes, completely free with no signup required.

Does my JSON file get uploaded to a server?

No. All processing happens locally in your browser using JavaScript. Nothing is uploaded.

What JSON structure is expected?

The converter expects a JSON array of objects. The keys of the first object become the IIF field names.

What will the output file be named?

The output IIF file will have the same base name as your input JSON file, with the extension changed to .iif.

Free JSON to IIF Converter | FinancialDataTools.com

Source JSON

Drop to load

JSON file (.json)

{ }

Drop a JSON file or click Open

Supports .json, .txt

About the Free JSON to IIF Converter

The FinancialDataTools.com JSON to IIF Converter is a free, browser-based tool for converting JSON files to IIF format. It runs entirely in your browser — no file is ever uploaded to any server.

How It Works

Drop your JSON file onto the left panel or click Open to browse. Your source data is previewed in a table. Click Convert to IIF to generate the output in the right panel. Click Export IIF 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.

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