JSON to CSV Converter
Convert JSON arrays and nested objects into clean, downloadable CSV spreadsheets in seconds.
Batch workspace
Format multiple files locally in one run.
How to use the JSON to CSV
Paste code or file
Paste your raw JSON text or upload directly.
Configure options
Choose indentation, dialect, or formatting preferences.
Format & export
Click format, then copy, download, or inspect in tree view.
What is a JSON to CSV?
Convert JSON arrays and nested objects into clean, downloadable CSV spreadsheets in seconds. This tool re-indents and organizes code according to standard style conventions while checking for syntax validity. Everything executes 100% inside your browser, guaranteeing zero latency and complete privacy for API keys, user tokens, and confidential database schemas.
Options Explained
| Option | Description |
|---|---|
| Delimiter | Select the field separator character for your output spreadsheet. |
| Flatten nested objects | Expands nested JSON properties into dot-notation column names (e.g. address.city). |
| Include column header | Adds the first row containing column names in the CSV output. |
| Quote all fields | Forces double quotes around every cell value instead of only fields containing commas. |
Frequently Asked Questions
How does JSON to CSV handle nested objects?
When 'Flatten nested objects' is enabled, nested properties are converted into dot-notation column headers like user.address.city.
Can I convert a single JSON object rather than an array?
Yes. Single objects are converted into a single-row CSV table with all object keys as headers.
How are nested arrays handled?
Nested array values are serialized into JSON strings inside their corresponding table cell.
Can I open the generated CSV in Microsoft Excel or Google Sheets?
Yes. Standard comma-delimited CSVs open directly in Excel, Numbers, and Google Sheets without any additional formatting.
Is my JSON data uploaded or stored?
No. Conversion executes 100% in your browser using PapaParse and client-side JavaScript. Your data remains strictly private.
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