JSON to CSV Converter
Convert JSON data to CSV format online
All processing happens in your browser. Your data never leaves your device.Features
- Convert JSON arrays to CSV format instantly
- Automatic header detection from JSON object keys
- Handles nested values and special characters
- Download output as .csv file for use in Excel, Google Sheets, or any spreadsheet app
- All conversion happens in your browser — your data never leaves your device
How to Use the JSON to CSV Converter
- 1Paste your JSON data into the input area (must be an array of objects)
- 2Click "Convert to CSV" to transform the data
- 3Review the CSV output with comma-separated values
- 4Click "Download" to save as a .csv file, or copy the text directly
Frequently Asked Questions
What JSON format is supported?
The converter works best with an array of objects, where each object represents a row and keys represent column headers. Example: [{"name":"Alice","age":30},{"name":"Bob","age":25}]. Single objects are also supported and will be converted to a single-row CSV.
How are nested objects handled?
Nested objects and arrays are converted to strings. For complex nested data, you may need to flatten your JSON structure before conversion for best results.
Will the column order be preserved?
Column order is determined by the keys in the first JSON object. If different objects have keys in different orders, the converter uses the first object's key order as the header.
Can I convert large JSON files?
Yes, but very large files (>10MB) may be slow to process since conversion happens in your browser. For massive datasets, consider using a command-line tool or server-side converter.
How are special characters handled?
The converter follows standard CSV escaping rules. Values containing commas, quotes, or newlines are automatically wrapped in double quotes, and internal quotes are escaped.