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JSON to CSV / Excel Converter

100% client-side. Your data never leaves your browser.

🔐 Your data never leaves your browser
Input
Paste JSON or upload a file. We’ll normalize, flatten, and build a preview before export.
Supported: single object, array of objects, nested JSON. Arrays will be converted to comma-separated strings.
Input size: 0 B
Export
Download CSV/Excel or copy CSV to clipboard.
All processing happens locally in your browser.

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