How does it handle multiple sheets?

Currently, this tool converts the first sheet of your workbook. Support for multiple sheets is coming soon.

Can I convert large files?

Yes, our client-side converter can handle spreadsheets with thousands of rows efficiently.

What if my sheet has empty rows?

The converter automatically skips empty rows and null values to ensure your JSON is clean and valid.

Excel to JSON

Transform spreadsheet rows into JSON arrays.

Free No Signup 100% Private No Watermark

Tap to select or drop files here

Processed 100% locally in your browser

Up to 75 MB per file and 200 MB per batch

XLSXXLSCSV

More Excel Tools

How to Use Excel to JSON in 3 Easy Steps

Fast, local, and completely free with no software installation required.

Select or Drop Your File

Choose or drag-and-drop your file into the secure workspace directly from your device.

Customize Settings & Process

Adjust desired quality, options, or target formatting in real-time with instant browser processing.

Download Your Finished File

Save your optimized, watermark-free result immediately with zero server uploads or tracking.

About Excel to JSON

Convert your Excel (.xlsx, .xls) or CSV files into JSON format. This tool is perfect for developers who need to quickly import spreadsheet data into their applications, databases, or configuration files. The first row of your spreadsheet is used as the keys for the JSON objects.

All file conversions, resizing, and processing take place directly in your browser using modern WebAssembly and HTML5 Canvas technologies. No data is stored, tracked, or sent across external networks.