How to Convert JSON to CSV and Back (Free Online Tool)

Convert JSON data to CSV for Excel, or CSV files to JSON for your API — free online tool with live preview.

Why Convert Between JSON and CSV?

JSON is the standard format for APIs and web applications. CSV is the standard for spreadsheets and data analysis tools like Excel. Converting between them is a common workflow for data engineers, analysts, and developers.

How to Convert JSON to CSV

Visit OnlineToolsZone JSON to CSV Converter.
Paste your JSON array into the input box.
See the CSV output instantly with a live table preview.
Copy or download the CSV file.

JSON to CSV: Requirements

JSON must be an array of objects: [{"key": "value"}, ...]
All objects should ideally have the same keys (column headers)
Nested objects will be stringified as JSON strings in the CSV

CSV to JSON Example

// CSV input:
name,age,city
Alice,30,London
Bob,25,New York

// JSON output:
[
  {"name": "Alice", "age": "30", "city": "London"},
  {"name": "Bob", "age": "25", "city": "New York"}
]

Frequently Asked Questions

Is JSON to CSV conversion free?

Yes, completely free with no file size limits on OnlineToolsZone.

Is my data uploaded to a server?

No. Conversion runs entirely in your browser.

Can I download the result?

Yes. Download as a .csv or .json file.

Conclusion

Converting between JSON and CSV is a common developer task. OnlineToolsZone JSON ↔ CSV Converter makes it instant and free with a live table preview.