Is this Excel to JSON converter free?

Yes, it is completely free and runs entirely in your browser.

Is my Excel data sent to a server?

No. All processing happens locally in your browser; your data never leaves your computer.

The tool supports both modern .xlsx and legacy .xls file formats.

Yes, you can choose to convert a specific sheet or combine data from multiple sheets.

By default, the first row is used as property names (keys), and each subsequent row becomes an object in a JSON array.

Yes, a live, formatted preview of the JSON is displayed as soon as the conversion is complete.

Excel To JSON

Upload Excel file to perform Excel to JSON data conversion, preview and edits

📂 Upload Excel

Uploaded excel file content will apear here.

✅ Successfully Converted

JSON Output Preview

Copy or download the generated JSON code below.