spreadsheets · convert

XLSX to JSON

First sheet → a JSON array of objects, header row as the keys; numbers stay numbers, text stays text, blank rows skipped. The sheet name and key list are shown before export.

Workspace Files stay on your device

A little guidance. A better result.

How to use XLSX to JSON

First sheet → JSON array of objects keyed by the header row; numbers stay numbers.

Prepare your input
Choose an XLSX workbook.
Use the workspace
Review the first sheet's name and header keys.
Check your result
Download JSON and compare numeric and text values.

Know the limits

Only the first sheet is exported. Duplicate header names cannot stay distinct object keys.

Where does my input go?

This browser tool processes your input on your device. Optional analytics is a separate choice; it is not needed to use the tool. Keep your original until you have checked the result.

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