JSON to CSV Converter
Convert JSON arrays of objects into CSV with a shared header row, correct quoting and optional delimiter or header toggles — in your browser.
JSON to CSV
Turn a JSON array into a spreadsheet-ready CSV table.
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Delimiter
How to use
The whole flow runs in your browser — nothing is uploaded.
- Paste your JSONAn array of objects works best — keys become columns.
- Review optionsChoose the delimiter, and whether to include the header row.
- ConvertPress Convert to CSV and check the preview.
- ExportCopy the CSV or download it as a .csv file.
- Every step runs locally in your browser.
Key Features
Convert arrays of JSON objects into spreadsheet-ready CSV. Everything runs client-side on your own device.
- Union of columnsEvery key found across your objects becomes a column, in first-seen order.
- Correct quotingValues containing commas, quotes or newlines are escaped to RFC 4180 rules.
- Delimiter choicesComma, semicolon, tab or pipe — for any spreadsheet locale.
- No uploadConversion happens in your browser.
Frequently asked questions
An array of objects, an array of arrays, or a single object (treated as one row). Nested objects and arrays are written as compact JSON inside their cell.
The header is the union of every key in the data, and missing values are written as empty cells.
Yes — choose a comma delimiter and UTF-8 output, then open or import the .csv file directly.