Excel (XLSX) to JSON Converter
Instantly convert Excel/spreadsheet sheets into a JSON array to copy or download
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🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
Upload an .xlsx or .xls Excel file, pick a sheet, and convert it into a JSON array. You can choose whether to use the first row as keys (headers), and the result can be copied or downloaded as a .json file.
How to use
- Drag and drop or click to select an Excel (.xlsx/.xls) file.
- Pick the sheet to convert and choose whether to 'Use first row as headers (keys)'.
- Check the JSON in the preview, then click 'Copy JSON' or 'Download JSON'.
FAQ
- Does it work with multi-sheet files?
- Yes. When you open the file, you can select the sheet you want from the list, and changing sheets instantly recalculates the resulting JSON.
- What's the difference between using the first row as headers or not?
- Using it as headers turns each row into an array of { columnName: value } objects. Turning it off produces a two-dimensional array (an array of arrays) holding the raw cell values.
- Is my file sent to a server?
- No. The Excel file you upload is never sent to or stored on a server, and all conversion happens entirely within your browser.