JSON to CSV converter
Convert a JSON array of objects into CSV.
🔒 100% client-side — no data sent
Convert a JSON array of objects into a CSV file in seconds, ready to open in Excel, Google Sheets or any spreadsheet. The tool automatically detects columns from your objects' keys. All conversion happens in your browser: your data never leaves your device.
FAQ
What JSON format do I need for CSV conversion?
Provide an array of objects, for example [{"name":"Alice","age":30},{"name":"Bob","age":25}]. Each object becomes a row and each key a column in the CSV.
How are nested objects or arrays handled?
Nested values are usually converted to a JSON string in the corresponding cell. For a flat result, flatten your data before converting.
Can I open the generated CSV in Excel?
Yes, the CSV file opens in Excel, Google Sheets, LibreOffice or any spreadsheet. If accents look wrong, make sure the import encoding is set to UTF-8.
Is my JSON data sent online?
No, the JSON to CSV conversion runs entirely in your browser. Your data stays local and is neither transmitted nor stored on a server.