JSON to Excel

Convert a JSON array into an Excel .xlsx spreadsheet, right in your browser. Free, private, nothing uploaded.

Drop files here or click to browse

Converted on your device. Nothing is uploaded — no size limit.

Frequently asked questions

Are my files uploaded to a server?

No. Everything is processed entirely inside your browser. Your files never leave your device or get sent anywhere.

What JSON format does it expect?

An array of objects (e.g. [{"name":"A","age":1}, …]). Each object's keys become the spreadsheet's header row.

Can I open the result in Excel?

Yes — it produces a real .xlsx file that opens in Excel, Google Sheets and LibreOffice.