What JSON structure does this expect?

An array of objects where each object has the same keys. Example: [{"name":"Alice","age":30},{"name":"Bob","age":25}]. The keys become the CSV column headers.

What happens with nested objects?

Nested objects are stringified as JSON text in the cell. If you need them expanded into separate columns, flatten your JSON before converting.

Is my data sent to a server?

No. This conversion runs entirely in your browser. Your data never leaves your machine.

Can I open the resulting CSV in Excel?

Yes. Download the .csv file and open it directly in Excel, Google Sheets, or any spreadsheet application.

JSON to CSV

Convert JSON files or data to CSV format online for free.

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Frequently asked questions

Convert JSON to CSV Online Free — JSON Array to Spreadsheet

JSON is the standard format for APIs and web services, but spreadsheet tools like Excel and Google Sheets work with CSV. Our JSON to CSV converter takes a JSON array of objects and transforms it into a comma-separated CSV file with proper column headers. Paste your JSON directly or upload a file — the output is ready to open in any spreadsheet application.

Auto-detects columns

Keys from your JSON objects become column headers automatically. Nested values are flattened or stringified.

Copy or download

Copy the CSV output to clipboard for quick pasting, or download as a .csv file to open in Excel or Google Sheets.

Works in browser

Conversion happens entirely in your browser — your data never leaves your machine. No server upload required.

Exporting API data to a spreadsheet? Sharing records with a non-technical colleague? JSON to CSV conversion is the bridge between developer data formats and business tools. Fast, free, and private.