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JSON to CSV Converter

Convert a JSON array of objects to CSV format with automatic header detection.

Converting JSON data to CSV is essential for importing data into spreadsheets, databases, and reporting tools. This converter takes a JSON array of objects, automatically extracts all unique keys as column headers, and generates clean CSV output.

Choose your preferred delimiter and the tool handles quoting fields that contain the delimiter. Everything runs in your browser with no data sent to any server.

Converter

Results

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How to Use

  1. Paste a JSON array of objects into the input field
  2. Select the desired delimiter
  3. Click Calculate to convert
  4. Copy the CSV output

FAQ

What JSON format is expected?

The input must be a JSON array of objects, like [{"name":"Alice"},{"name":"Bob"}]. Nested objects are converted to string representation.

How are headers determined?

Headers are automatically extracted from all unique keys across all objects in the array.

Is my data sent to a server?

No. All conversion happens in your browser. Your data never leaves your device.

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