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 JSON to Excel Converter

Convert JSON data to a real Excel .xlsx file directly in your browser. Paste a JSON array, a single JSON object, or nested JSON, preview the flattened result as a table, and download a ready-to-use spreadsheet without uploading your data anywhere.

Your data stays in your browser. No JSON data is uploaded to a server.
Rows
0
Columns
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Preview (first 20 rows)
Convert JSON to see a preview of the Excel data.

⭐ JSON to Excel Converter - Explanation and Examples

The JSON to Excel Converter turns a JSON object or a JSON array into a real Excel .xlsx workbook that opens cleanly in Microsoft Excel, LibreOffice Calc, and Google Sheets. Everything runs locally in your browser, so your data stays private.

⭐ What Does This JSON to Excel Converter Do?

Paste JSON data into the input field. The tool validates the JSON, flattens nested objects, collects all relevant columns, shows a table preview, and lets you download a ready-to-use Excel file with one click.

  • Converts a JSON object or an array of JSON objects into Excel rows.
  • Flattens nested objects into dot-notated columns.
  • Keeps arrays readable as a JSON-encoded string in a single cell.
  • Uses real Excel data types for strings, numbers, and booleans wherever possible.

⚙️ How to Convert JSON to Excel

  1. Paste your JSON into the input field.
  2. Select Convert to Excel.
  3. Review the row and column counts and the preview table.
  4. Select Download Excel to save the .xlsx file.

🔎 Example: Nested JSON to Excel

JSON input:

[
  {
    "id": 1,
    "name": "John",
    "address": {
      "city": "Amsterdam",
      "country": "Netherlands"
    }
  }
]

Excel columns: id, name, address.city, address.country

🔎 Example: Arrays Inside Objects

JSON input:

[
  { "name": "John", "skills": ["JavaScript", "HTML", "CSS"] }
]

The skills column becomes one cell containing ["JavaScript","HTML","CSS"], so no information is lost.

⚠️ JSON and Excel Formatting Tips

  • Use an object or an array of objects at the top level of your JSON.
  • A single JSON object is automatically converted into one Excel row.
  • When a property is missing from a record, the matching Excel cell stays empty.
  • The worksheet is named JSON Data and column widths are sized automatically to fit the content.

⭐ Private Browser-Based Conversion

Your JSON and the generated Excel file remain in your browser. The JSON to Excel Converter does not upload data to a server, requires no account, and is ready to use immediately.

This tool is also known as

  • json to excel converter online
  • convert json file to xlsx
  • json array to excel spreadsheet
  • flatten json to excel
  • download json as xlsx

Frequently Asked Questions

It is a browser-based tool that turns a JSON object or an array of JSON objects into a real Excel .xlsx file with headers, rows, and columns.

Paste your JSON into the input field, select Convert to Excel, review the preview table, then select Download Excel to save the .xlsx file.

Yes. Nested objects are automatically flattened into dot-notated columns, such as address.city and address.postalCode.

Yes. A single JSON object is automatically treated as one row in the generated Excel file.

Arrays are written as a readable JSON-encoded string in a single cell, for example ["JavaScript","HTML","CSS"], so no data is lost.

The converter collects all columns found across every record. When an object is missing a property, the matching Excel cell is simply left empty.

Yes, the tool is completely free to use and does not require an account or sign-up.

No. Parsing, conversion, previewing, and the Excel file generation all happen locally in your browser. Your data is never uploaded.

Yes. The .xlsx file is generated with SheetJS and opens correctly in Microsoft Excel, LibreOffice Calc, and Google Sheets.

Yes. Numbers and booleans from your JSON are written as real Excel data types instead of plain text, wherever possible.

Yes, though very large files depend on your browser memory. The table preview only shows the first 20 rows, but the downloaded file includes every converted row.

The input is not valid JSON. Check for missing commas, quotes, brackets, or braces, and try again.

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