Automatic Nested Object Flattening
When converting complex API responses to CSV, nested data models pose a structural challenge. Our converter uses recursive dot-notation flattening:
[
{
"id": 1,
"user": { "name": "Alice", "city": "Delhi" }
}
]id,user.name,user.city 1,"Alice","Delhi"
Frequently Asked Questions
How does the JSON to CSV conversion process work?
The converter inspects your JSON array of objects, extracts unique key names across all entries to form CSV table headers, and maps each object property into a corresponding row cell.
How are nested JSON objects converted to CSV columns?
Nested child objects are automatically flattened using dot notation (e.g. user.address.city). Arrays of primitives are joined into comma-separated strings.
Can I open the generated CSV in Microsoft Excel or Google Sheets?
Yes! The exported CSV includes UTF-8 encoding and standard comma delimiters, making it instantly compatible with Excel, Google Sheets, Apple Numbers, and pandas DataFrames.

