JSON to CSV Converter

Convert any JSON (objects, arrays, or nested data) into CSV format. All processing happens locally in your browser.

input.json
output.csv

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Frequently asked questions

Paste your JSON (array of objects or single object) into the editor. The tool flattens nested objects and outputs CSV with proper escaping. Download or copy the result.

No. All conversion happens 100% client-side in your browser. Your data never leaves your machine.

Nested objects are flattened using dot notation (e.g., 'location.city' becomes a column). Arrays are stringified as JSON in a single cell.

RFC 4180 compliant: comma-separated, double-quote escaping, proper handling of commas, quotes, and newlines in values.

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