API responses arrive as JSON, but analysts and stakeholders often need CSV for Excel, Google Sheets, or reporting pipelines. Our free JSON to CSV Converter turns a JSON array of objects into spreadsheet-ready CSV in your browser — preview, copy, or download instantly.
Why Convert JSON to CSV?
Product managers reviewing user exports, data analysts building pivot tables, and non-developers sharing API data all prefer flat spreadsheets. CSV is the lingua franca between code and Excel — no JSON parsing required on the receiving end.
Required JSON Structure
Conversion works cleanly when JSON is an array of flat objects with consistent keys. Each object becomes one row; each key becomes a column header. Example:
[
{"name": "Alice", "email": "alice@example.com", "age": 28},
{"name": "Bob", "email": "bob@example.com", "age": 34}
]Nested Objects
Nested data does not map neatly to flat CSV columns. Our tool flattens one level using dot notation (address.city) and stringifies arrays or deeper nesting with a visible warning in the preview — so you never get silently broken output.
CSV to JSON — The Reverse Direction
Need to go the other way? Use our CSV to JSON converter to parse spreadsheet data back into JSON arrays.
Related Reading
Frequently Asked Questions
What JSON structure works best for CSV conversion?
A flat array of objects where every object has the same keys — for example, an array of user records each with name, email, and age fields. This maps cleanly to CSV rows and columns.
What happens to nested objects in the JSON?
Nested objects (objects inside objects) don't have a natural flat-CSV equivalent — the converter flattens one level with dot notation (e.g. address.city) or stringifies deeper nesting. Check the output preview to confirm the result matches your expectation.
Can I open the downloaded CSV directly in Excel?
Yes — the downloaded .csv file can be opened directly in Excel, Google Sheets, or any spreadsheet application.
What if I need to go the other direction — CSV to JSON?
Use the CSV to JSON tool, also available on this site.