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JSON to CSV Converter

Convert a flat JSON object array to safe CSV.

Enter your values

Your inputs are processed locally. Review the method and limitations before relying on the estimate.

Upload a JSON file (maximum 3 MB) or paste its text below. Nothing is transmitted to our server. For spreadsheet CSV exports, formula defense may change raw cell text; use JSON when exact data preservation is essential.

Browser processing is bounded to 3 MB per file and at most 15,000 parsed CSV rows. Download the output to keep a copy; nothing is saved here.

Worked example

[{"sku":"001"}] becomes a CSV header and one value.

Frequently asked questions

Are my files uploaded?

No. Files are read by JavaScript in this browser; no server processing or background upload is used.

Are spreadsheet formulas executed?

No. Input is treated as plain text. CSV export applies defense-in-depth spreadsheet formula escaping, which can change the literal exported cell value.