Excel to JSON Converter

What is Excel to JSON Conversion?

Excel to JSON conversion transforms spreadsheet data into JSON (JavaScript Object Notation) format. This is useful for importing Excel data into web applications, APIs, databases, or other systems that work with JSON. Excel files contain structured data in rows and columns, which can be converted to JSON arrays of objects.

Our free Excel to JSON Converter reads Excel files (.xlsx, .xls) and converts them to JSON format. The first row becomes object keys, and subsequent rows become data objects. All processing happens in your browser for privacy and security.

How Excel to JSON Works

The conversion process:

1. Read Excel file using XLSX library
2. Parse first sheet (or selected sheet)
3. Use first row as column headers (keys)
4. Convert each row to a JSON object
5. Generate JSON array of objects

Example Conversion

Excel data:

JSON output:

[
  {
    "Name": "John",
    "Age": 30,
    "City": "New York"
  }
]

Best Practices

• Clean Headers: Ensure first row has clear column names
• Consistent Data: Keep data types consistent in columns
• No Empty Rows: Remove empty rows before conversion
• Validate Output: Check JSON output for accuracy

FAQs

What Excel formats are supported?

Our converter supports .xlsx (Excel 2007+) and .xls (Excel 97-2003) formats.

Which sheet is converted?

The first sheet in the Excel file is converted by default.

What if my Excel has multiple sheets?

Only the first sheet is converted. For multiple sheets, convert them separately or use specialized tools.

How are empty cells handled?

Empty cells are typically converted to null or omitted from JSON objects, depending on the conversion library.