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JSON ↔ CSV Converter
Convert JSON arrays to CSV and CSV back to JSON. Pretty-print, copy, or download — all in your browser.
JSON → CSV Notes
- Input must be a JSON array of objects (or a single object — auto-wrapped).
- All unique keys across all objects become column headers.
- Nested objects/arrays are serialized as JSON strings inside the cell.
- Values containing commas, quotes, or newlines are automatically quoted.