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Client-side only

JSON to CSV Converter — Free Online Tool

Convert JSON arrays to CSV instantly. Supports nested objects (flattened with dot notation), custom delimiters, and direct CSV download.

100% client-side — your data never leaves your browser
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How to Use JSON to CSV Converter

  1. Paste your JSON array

    Paste a JSON array of objects into the input box.

  2. Choose delimiter and options

    Select comma, semicolon, or tab as separator. Toggle headers on or off.

  3. Preview and download

    See a preview of the first 5 rows, then click Download CSV to save the file.

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Frequently Asked Questions

What JSON format does this converter accept?

The converter accepts a JSON array of objects, where each object becomes a row and the keys become column headers. Example: [{"name": "Alice", "age": 30}, {"name": "Bob", "age": 25}] converts to a CSV with Name and Age columns.

How are nested objects handled?

Nested objects are flattened using dot notation. For example, {"user": {"name": "Alice", "city": "Mumbai"}} becomes two columns: user.name and user.city.

Is my data safe?

Yes — all conversion happens in your browser. Your JSON data is never uploaded to any server, making this safe for internal data, API responses, and sensitive records.

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