JSON to CSV Converter
Convert a JSON array of objects to CSV — nested keys auto-flattened with dot notation.
How JSON to CSV Conversion Works
JSON is the universal data format for APIs and web services, but CSV (Comma Separated Values) is the language of spreadsheets, Excel, Google Sheets, and database imports. This converter bridges that gap — paste your JSON array and get a clean, properly escaped CSV in one click.
Nested objects like "address": {"city": "Mumbai"} are automatically flattened into columns like address.city so your spreadsheet stays readable. Cell values with commas or quotes are automatically quoted and escaped.
How to Use
- Paste your JSON array of objects into the left panel (or upload a .json file).
- Click Convert to CSV.
- Review the CSV output on the right — it shows the row count automatically.
- Click Copy to paste into Excel/Sheets, or ↓ Download to save as a .csv file.
Frequently Asked Questions
Can I convert nested JSON to CSV?
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Yes. When converting nested JSON objects, QuietJSON automatically flattens nested properties into dot-notation column headers (for example, address.city and user.name). This preserves your hierarchical data structure in a clean tabular format.
What happens to arrays when converting JSON to CSV?
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Top-level JSON arrays of objects serve as the rows of the CSV table. If an individual object contains an array as a property value, that array is serialized into a formatted JSON string within that specific table cell to prevent column misalignment.
Can I open the converted CSV in Excel or Google Sheets?
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Yes. The generated CSV uses standard RFC 4180 formatting with UTF-8 encoding and comma delimiters. You can directly import or open the downloaded .csv file in Microsoft Excel, Google Sheets, Apple Numbers, or any database tool.