How to Use Excel to JSON
Open an .xlsx, .xls or .csv file and convert any sheet to a clean JSON array of objects, entirely in your browser with SheetJS. Nothing is uploaded.
Open the Excel to JSON tool →What is Excel to JSON?
Convert Excel/CSV spreadsheets to JSON — choose the sheet, copy the result. It's completely free, needs no sign-up, and runs entirely in your browser — so it's fast and private.
How to use Excel to JSON
- Open the Excel to JSON tool.
- Enter your details or values.
- The result is calculated instantly.
- Copy or use the result. Everything runs in your browser — nothing is uploaded.
Frequently asked questions
What files can I convert?
Excel workbooks and CSV files; pick the sheet and copy the resulting JSON.
How are rows converted?
The header row becomes object keys and each following row becomes an object in a JSON array.
Is my spreadsheet uploaded?
No — conversion happens in your browser with SheetJS.
Ready to try it?
Open Excel to JSON →