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JSON to CSV Converter
Convert JSON data to CSV format
Conversion Options
JSON Input
CSV Output
JSON to CSV Converter Guide
Convert JSON data to spreadsheet-friendly CSV format
What is JSON to CSV Conversion?
JSON to CSV converter transforms JSON arrays or objects into CSV (Comma-Separated Values) format. It generates tabular data that can be used in spreadsheet programs or databases.
How to Use
- Paste JSON data (array or object)
- Select delimiter (comma, semicolon, tab, pipe)
- Configure options (headers, nested object handling, etc.)
- Copy or download the converted CSV
Conversion Tips
- JSON arrays convert most cleanly
- Nested objects are flattened with dot notation (e.g., address.city)
- For Excel, semicolon delimiter may work better in some regions
Processing
All conversion happens locally in your browser. No data is sent to any server, making it safe for sensitive information.
Frequently Asked Questions
What JSON formats are supported?
Array of objects works best. Single objects convert to 1-row CSV. Nested objects are flattened using dot notation like 'address.city'. Arrays within arrays are converted to JSON strings.
Why doesn't my CSV open correctly in Excel?
Excel's default delimiter varies by system settings. Try using semicolon (;) as delimiter for European/Korean Excel. Alternatively, use Excel's 'Data > Text to Columns' feature.
How are special characters and commas handled?
Enable 'Quote Strings' option to automatically wrap values containing commas, newlines, or quotes in double quotes with proper escaping. Compatible with most CSV parsers.
How to fix character encoding issues?
Downloaded files use UTF-8 encoding. In Excel, use 'Data > From Text/CSV' and select UTF-8 encoding. Or open in Notepad and re-save with correct encoding.
Can I convert API responses directly?
Yes, paste the JSON response from any API directly. Nested structures are handled automatically. Note: very large datasets (tens of thousands of rows) may affect browser performance.