YAMLFormatter
JSON
1
CSV
Comma
Result will appear here
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JSON to CSV Converter

The JSON to CSV converter transforms JSON arrays of objects into downloadable CSV spreadsheets. APIs return JSON, but teams often need that data in spreadsheet format for reporting, analysis, or import into databases.

The converter automatically extracts headers from all object keys, flattens nested objects using dot notation, and handles arrays by serialising them as JSON strings within CSV cells. Supports configurable separators.

All processing runs entirely in your browser with no data sent to any server.

  • Converts JSON arrays to CSV format
  • Flattens nested objects with dot notation
  • Configurable separator (comma, tab, custom)
  • Proper CSV escaping of special characters
  • Download as .csv file
  • Copy result to clipboard with one click

Example Input

[
  { "name": "Alice", "age": 30 },
  { "name": "Bob", "age": 25 }
]

Example Output

name,age
Alice,30
Bob,25

Frequently Asked Questions