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JSON to CSV converter

Convert a JSON array of objects into CSV. Include every column and optionally protect spreadsheet cells from formula interpretation.

Free · No signup · Processed in your browser

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How to use this tool

Paste a JSON array of objects.
Keep spreadsheet protection enabled for untrusted text.
Convert and download the CSV.

How it works

The output includes every top-level key. Missing or null values become empty cells; nested objects become JSON in a quoted cell. Spreadsheet protection prefixes text that could be interpreted as a formula with an apostrophe.

What to check before using the result

Protection changes affected values, including negative numbers. Turn it off only when appropriate for your destination. JSON numbers are parsed as JavaScript numbers; encode large numeric identifiers as strings to preserve them exactly.

OWASP: CSV formula injection ↗

BEFORE YOU GO

Your work stays yours.

Are my files, text or numbers uploaded?

No. This tool processes the input in your browser tab. It does not send your input to our servers. Leaving or refreshing the page clears the working input.

Do I need an account or subscription?

No account is required for this public tool. You can complete the task and download the result directly. An account is useful when you want to measure visits to your own website or manage tracked campaign links.

Can I share or link to this tool?

Yes. Use the tool link below in a tutorial, team resource list or campaign checklist. The link opens an empty tool; your private input is not included.

USEFUL THINGS ARE WORTH SHARING

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Bookmark this page or share it with someone who has the same task.

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