JSON to CSV Converter
Convert your JSON data to CSV format instantly and securely in your browser.
Turn JSON Into Spreadsheet-Ready CSV
Paste a JSON array of objects and convert it into a clean CSV file — nested structures are flattened, headers are generated automatically, and the result downloads ready for Excel or Google Sheets.
Copy the CSV to your clipboard or download it as a .csv file. Conversion runs entirely in your browser, so private datasets stay on your device.
Smart flattening
Nested objects and arrays are flattened into columns automatically, so complex JSON becomes a tidy spreadsheet.
Copy or download
Grab the result as a downloadable CSV file or copy it straight to the clipboard for pasting into Sheets.
Private by design
Because conversion runs locally in your browser, API responses and datasets you paste are never uploaded to a server.
How to use
- Paste your JSON array into the input box.
- Click Convert to CSV.
- Copy the result or download the CSV file.
Frequently Asked Questions
What JSON format does the converter accept?
An array of objects works best — each object becomes a row, each key becomes a column. Nested values are flattened with dot notation.
How are nested objects handled?
Nested objects and arrays are flattened into separate columns (for example, address.city), so nothing is lost in conversion.
Can I open the CSV in Excel?
Yes. The output is standard CSV that opens directly in Excel, Google Sheets, LibreOffice, and most spreadsheet apps.
Is my data uploaded to a server?
No. Conversion happens entirely in your browser — your JSON never leaves your device.
Is the converter free?
Yes, free with no signup.
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