What Excel formats are supported?

Both .xlsx and .xls files are supported.

How are multiple sheets handled?

You can select which sheet to convert from a dropdown after uploading.

No, all processing happens in your browser. Your file never leaves your device.

Convert Excel spreadsheets (.xlsx, .xls) to JSON

Upload Excel File

First row is header

JSON Output

Select an Excel file (.xlsx or .xls) from your computer.

Choose which sheet to convert if the file has multiple sheets.

Click Convert to transform the spreadsheet to JSON.

Copy the JSON or download as a file.

Convert Excel reports to JSON for database import.

Transform spreadsheets into JSON for web applications.

Convert Excel data for use in automated workflows.

Prepare spreadsheet data for JavaScript processing.