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Excel to JSON Converter — Upload .xlsx, Get Clean JSON

Upload an .xlsx file to convert its data to clean JSON, with the header row automatically used as object keys — processed entirely in your browser, so the file itself is never uploaded anywhere.

How to use Excel to JSON

1. Upload your .xlsx file.
2. Select the sheet if there is more than one.
3. Copy or download the resulting JSON.

Frequently asked questions

Is my Excel file uploaded to a server?

No. Parsing happens entirely in your browser — the file never leaves your device.

What if my workbook has multiple sheets?

You can select which sheet to convert; each sheet is converted independently.

How are empty cells handled?

Empty cells become null or are omitted depending on your chosen output style, rather than causing the conversion to fail.

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