JSON to CSV Converter
Transform JSON arrays into CSV format for spreadsheets, databases, and data analysis tools.
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What is the JSON to CSV Converter?
Converting JSON to CSV bridges the gap between API-friendly structured data and spreadsheet-compatible tabular formats. JSON arrays of objects map naturally to CSV: each object becomes a row, each unique key becomes a column header. Nested structures are flattened with dot-notation paths, making deep API responses usable in Excel, Google Sheets, and database import tools without writing custom parsing scripts.
How to use the JSON to CSV Converter?
- Paste a JSON array of objects into the input editor (e.g. [{"name":"Alice","age":30},{"name":"Bob","age":25}]).
- Click 'Convert to CSV' to transform the JSON data into comma-separated values.
- Nested objects are flattened using dot notation (e.g. 'address.city') as column headers.
- Review the CSV output in the right panel with properly escaped values and quoted strings.
- Click 'Download CSV' to save the file locally or 'Copy' to paste into spreadsheets.
Frequently Asked Questions
What JSON structure works best for CSV conversion?
An array of flat objects with consistent keys produces the cleanest CSV. Each object becomes a row, and each key becomes a column header. Nested objects are flattened with dot notation (e.g. address.city), and arrays within values are joined with semicolons.
Can I convert a single JSON object to CSV?
Yes. A single object is treated as a one-row dataset. Each key becomes a column header and the values form a single data row.
How are special characters handled in CSV output?
Values containing commas, double quotes, or newlines are wrapped in double quotes. Existing double quotes within values are escaped by doubling them (""). This follows RFC 4180 CSV formatting standards.
Is this converter safe for sensitive data?
Yes. All conversion runs locally in your browser. No data is transmitted to any server — your JSON never leaves your device.