Paste or upload a JSON array of objects: the keys become CSV columns, ready for a spreadsheet. Copy or download the result. No signup.
Do this automatically
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No — conversion happens entirely in your browser. Safe for exports containing client or financial data.
Nested objects and arrays are embedded as JSON strings in their cell, so no data is lost — spreadsheet tools show them as text.
No fixed limit — your own browser does the work, and typical exports up to tens of thousands of rows convert instantly.