What file formats are supported?

This tool supports .xlsx, .xls, and .csv files. Excel files are converted using SheetJS and all processing happens locally in your browser.

Is my file uploaded to a server?

No. All file processing happens entirely in your browser. Your files never leave your device, ensuring complete privacy and security.

Yes. Simply upload a .csv file and choose JSON as the output format. The tool will parse the CSV headers and produce a JSON array of objects.

The first sheet in the workbook is used for conversion. Multi-sheet support is not available at this time.

Convert Excel files to CSV or JSON format. Free online Excel converter tool. No file size limits.

Select Excel / CSV File

Supported formats: .xlsx, .xls, .csv — processed entirely in your browser.

Convert To

Output