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Free · No signup · Private — runs in your browser

JSON to CSV

Flatten a JSON array of objects into a tidy CSV with a header row. Great for spreadsheets, reports and data imports — and it all runs locally in your browser.

One file is free — drag in several to batch-convert with Pro.

Need to edit, not just convert? Open the full Gridoly editor →

How it works

1Add your JSONDrag a .json file (an array of objects) onto the box, or click to choose one.
2We convert itObject keys become the header row and each object becomes a CSV line.
3Download CSVDownload your .csv — ready for Excel, Sheets or any importer.

Frequently asked questions

What JSON shape is expected?

An array of flat objects, e.g. [{"name":"A","qty":2}, …]. Keys become the columns.

What about nested objects?

Nested values are stringified. For complex data, flatten it first or use the full editor.

Is it private and free?

Yes to both — no upload, no signup, no limits.

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