How do I convert JSON data to an Excel spreadsheet online?

Upload your JSON file above. The converter parses the JSON array of objects, maps each key to an Excel column, and generates a .xlsx file with all your data organised in rows. Download is instant — free, no login required.

What JSON structure is required for JSON to Excel conversion?

A root-level JSON array of objects is the ideal input (e.g. [{"name":"Alice","age":30},{"name":"Bob","age":25}]). The converter also handles objects that wrap an array inside a property. Single objects are converted to a one-row spreadsheet.

Is the output .xlsx file compatible with all versions of Excel and Google Sheets?

Yes. The output uses the Office Open XML .xlsx format, which is compatible with Excel 2007 and later, Google Sheets (via File → Import), LibreOffice Calc, and Apple Numbers.

Does the JSON to Excel converter handle numbers and dates correctly?

Numeric values in the JSON are written as Excel numeric cells — not as text — so they can be summed, averaged, and used in formulas immediately. ISO 8601 date strings are converted to Excel date cells where detected.

Is the JSON to Excel converter free and private?

Yes — free with no account needed and no upload to any server. All processing runs in your browser, so your JSON data stays entirely on your device.

JSON → XLSX

JSON to Excel Converter

Convert JSON arrays to Excel (.xlsx) spreadsheets. Free, instant, no upload needed.

Your files are processed locally and never uploaded to our servers.

How it works

1
Upload your file
Drop your file or click to browse. No size limit.
2
Convert instantly
Processed in your browser — nothing is uploaded to any server.
3
Download the result
Your converted file is ready in seconds.

Frequently Asked Questions

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