Excel to JSON Converter - Free Online Tool | Unleashed Excel

Convert Excel files to JSON and vice versa with advanced formatting options. Perfect for developers and data analysts.

Conversion Direction

Convert Excel file to JSON format
Convert JSON data to Excel file

Upload Excel File

Drop Excel file here or click to browse

Support for .xlsx, .xls files (Max 10MB)

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Sample Files for Testing

Download sample files to test JSON conversion:

Sample Excel Data
Convert to Excel first, then test JSON conversion

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How to Use Excel to JSON Converter - Free Online Tool | Unleashed Excel

I'll guide you through converting between Excel and JSON formats. This is incredibly useful for web developers and data analysts who need to work with data in different formats.

Converting Excel to JSON:

Step 1: Choose Conversion Direction

Select "Excel → JSON" from the conversion options.

Step 2: Upload Your Excel File

Upload your Excel file (.xlsx or .xls, max 10MB). The tool will read your data and prepare it for conversion.

Step 3: Configure JSON Settings

  • Sheet Selection: Choose to convert the first sheet only or all sheets
  • JSON Format: Select from Array of Objects, Single Object, or Nested Structure
  • Row Limit: Set a limit for large files to ensure smooth performance
  • Include Empty Rows: Decide whether to include rows with no data

Step 4: Convert and Download

Click "Convert to JSON" and download your JSON file or copy the data to clipboard.

Converting JSON to Excel:

Step 1: Choose JSON to Excel

Select "JSON → Excel" from the conversion options.

Step 2: Enter Your JSON Data

Paste your JSON data into the text area. You can validate it first using the "Validate JSON" button.

Step 3: Configure Excel Settings

  • Sheet Name: Choose a name for your Excel sheet
  • Data Structure: Let the tool auto-detect or specify your JSON structure

Step 4: Convert and Download

Click "Convert to Excel" to create your Excel file.

Pro Tips for Best Results:

  • For Excel to JSON: Ensure your Excel data has proper headers in the first row
  • For JSON to Excel: Validate your JSON first to catch any syntax errors
  • Large datasets are automatically limited to ensure smooth performance
  • Use consistent data types within columns for better conversion results

Frequently Asked Questions

The tool supports standard JSON formats including arrays of objects (most common), single objects, and nested structures. It can handle both simple flat data and complex hierarchical data structures.

Large datasets can cause performance issues. I've set reasonable limits (1,000 to 10,000 rows) to ensure smooth operation. For larger datasets, consider splitting your data into smaller chunks.

Excel formulas are converted to their calculated values in JSON. The JSON format doesn't support formulas, so you'll get the results of the calculations, not the formulas themselves.

Yes! When you select "All Sheets", the tool creates a JSON object where each sheet becomes a property containing its data. This preserves the structure of multi-sheet workbooks.

Common JSON errors include missing quotes around strings, trailing commas, and unmatched brackets. Use the "Validate JSON" button to identify issues, then fix them in your JSON data before converting.

JSON doesn't preserve Excel formatting like colors, fonts, or cell styles. The conversion focuses on data content. If you need formatting preserved, consider using Excel's native import/export features instead.