JSON to CSV
Convert a JSON array to CSV.
Paste a JSON array of objects to convert it to CSV. Columns are taken from the union of all object keys; values with commas or quotes are escaped. Everything runs locally in your browser.
Your input is processed locally in your browser — nothing is uploaded, stored or logged.
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How it works
- 1 Paste a JSON array of objects.
- 2 The CSV appears live.
- 3 Copy or download the .csv file.
Common use cases
- Export API data to a spreadsheet.
- Turn JSON into a CSV report.
- Move data into Excel or Sheets.
- Flatten records for analysis.
Frequently asked questions
Is my text sent to a server?
No. Everything runs locally in your browser — your text is never uploaded, stored or logged.
What input is expected?
A JSON array of objects, e.g. [{"a":1},{"a":2}]. Anything else shows a clear error.
How are columns chosen?
From the union of all keys across the objects, in first-seen order. Missing values are left blank.
Is it really free?
Yes — free, with no signup and no limits.