Excel to JSON Converter

Convert Excel files to JSON format with preview and multiple sheet support

Conversion Options

Configure how your Excel file should be converted

Frequently Asked Questions

How do I convert an Excel file to JSON?

To convert an Excel file to JSON, drag and drop your .XLS or .XLSX file onto the upload area or click to browse and select it. The tool will automatically parse your Excel file and display a preview of the data. You can then configure conversion options like header row inclusion and date formats, and click Download to get your JSON file.

Does the converter support multiple sheets in Excel files?

Yes! The Excel to JSON converter fully supports workbooks with multiple sheets. After uploading, you'll see buttons for each sheet in your Excel file. Click on any sheet name to view and convert that specific sheet's data to JSON format.

What conversion options are available?

The tool offers several conversion options: Include Header Row (uses first row as JSON keys), Skip Empty Rows (removes blank rows from output), and Date Format selection (ISO format like 2025-01-15 or US format like 01/15/2025). These options help you customize the JSON output to match your requirements.

Can I preview the data before downloading?

Absolutely! After uploading your Excel file, you'll see a data preview showing the first 10 rows in a table format. You can also view the complete JSON output in a text area before downloading. This lets you verify the conversion is correct and make any necessary adjustments to conversion options.

What file size limit does the Excel to JSON converter have?

The converter supports Excel files up to 10MB in size, which is sufficient for most spreadsheets containing thousands of rows. All processing happens client-side in your browser, ensuring your data remains private and secure without being uploaded to any server.

Can I copy the JSON output instead of downloading?

Yes! In addition to downloading the JSON file, you can use the Copy JSON button to copy the entire JSON output to your clipboard. This is useful when you need to quickly paste the JSON data into another application or code editor.

How are dates handled in the Excel to JSON conversion?

The converter provides two date format options: ISO format (yyyy-mm-dd) which is standard for web applications and APIs, and US format (mm/dd/yyyy) which is common in American business contexts. Excel date values are automatically detected and converted to your selected format in the JSON output.

Is my Excel data secure when using this converter?

Yes, your data is completely secure. All Excel file processing and JSON conversion is performed entirely in your browser using JavaScript. No files are uploaded to our servers or transmitted anywhere. Your Excel files and data remain completely private on your device.