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100% FreeClient-side

JSON to CSV Converter — Free Online

Convert JSON arrays to downloadable CSV tables instantly. Flatten nested objects, choose columns, and download. 100% free, processed in your browser.

Data never uploadedFlatten nested JSONInstant conversion
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How to Convert JSON to CSV

1

Paste or upload JSON

Paste a JSON array or upload a .json file. The data is parsed instantly.

2

Preview table

Review the parsed data table. Nested objects are flattened into dot-notation columns.

3

Download CSV

Click Download to save the converted data as a CSV file.

Frequently Asked Questions

Is the JSON to CSV converter free?

Yes, 100% free with no account required.

Does it handle nested JSON?

Yes. Nested objects are flattened using dot notation (e.g., address.city becomes a column header).

Is my data safe?

All processing happens in your browser. No data is sent to any server.

What JSON structure is supported?

The input should be a JSON array of objects (e.g., [{...}, {...}]). Single objects are wrapped in an array automatically.

Can I choose which columns to include?

All detected columns are included by default. You can remove columns from the preview before downloading.

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