Convert XLSX to JSON
Excel spreadsheet (XLSX) → JSON data: convert online for free. XLSX to JSON conversion runs right in your browser — your files never leave your device.
Drop files here or choose them
You can also paste files with Ctrl+V
Files never leave your device
About the formats
- Excel spreadsheet (XLSX)
- Microsoft Excel workbook format with sheets, formulas and formatting. Also opens in Google Sheets, Numbers and LibreOffice.
- JSON data
- Text data format of web APIs and configs: objects and arrays of values readable by any programming language.
How to convert XLSX to JSON
- Choose a Excel spreadsheet (XLSX) file or drag it onto the page.
- Check the settings and click Convert.
- Download the JSON data file when it is ready.
Frequently asked questions
What if the workbook has several sheets?
The first sheet is converted by default. In the settings you can pick a sheet by number or name, or convert all sheets into one JSON object keyed by sheet name.
Is converting XLSX to JSON free?
Yes. Conversion is free, with no sign-up and no watermarks.
Are my XLSX files uploaded anywhere?
No. The conversion runs in your browser, so your files never leave your device.
What data is kept when converting XLSX to JSON?
All cell values and column headers. Formulas are saved as their calculated results; formatting, charts and images are not carried over, since CSV and JSON store data only.