Excel ⇔ JSON Converter - Convert Excel Files and JSON Bidirectionally

How to Use

1. Drop .xlsx file in 'Excel→JSON' tab
2. Select sheet and convert to JSON
3. Enter JSON text in 'JSON→Excel' tab to download

FAQ

What Excel formats are supported?

The .xlsx format is supported. Processing uses the SheetJS library.

What happens with multiple sheets?

The first sheet is used for conversion.

Is my data sent to a server?

No. All processing happens in your browser.

Is the header row automatically recognized?

Yes. The cells in the first row are automatically used as JSON key names.

What should I do if the conversion fails?

The .xls format is not supported. Please convert the file to .xlsx first.

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