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Free JSON to CSV Converter Online

Convert JSON arrays and objects to CSV format and convert CSV back to JSON. Handles nested objects, custom delimiters, and BOM encoding for Excel compatibility. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.

100% Client-Side0ms Latency
Formatted & Validated OutputValid RFC 8259

How It Works

1

Paste JSON Array

Input a valid JSON array of objects.

2

Configure Options

Choose delimiter (comma/semicolon/tab), header row inclusion, and BOM encoding.

3

Convert to CSV

Generate CSV output with all JSON fields as columns.

4

Download or Copy

Download as .csv file or copy to clipboard.

Frequently Asked Questions

Nested objects are flattened using dot notation. Example: {address: {city: 'Mumbai'}} becomes column 'address.city' with value 'Mumbai'. Deeply nested arrays may be serialized as JSON strings.

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