Convert JSON to Excel instantly

Convert JSON data to Excel XLSX in your browser. No upload needed. Your data stays on your device. Free and instant.

Drop your JSON file here

or click to browse

Your files stay private
No server upload
Instant conversion

Example

Input (JSON)

[
  { "name": "Alice", "department": "Engineering" },
  { "name": "Bob", "department": "Sales" }
]

Output (XLSX)

[data.xlsx]
Excel spreadsheet with 1 sheet
File size: 6 KB

About this converter

Got an API response or a JSON data file that someone needs in Excel? This converter takes a JSON array of objects and creates an XLSX spreadsheet where object keys become column headers and values fill the rows. It uses SheetJS to build the workbook entirely in your browser. Your data is not uploaded anywhere. The output opens in Excel, Google Sheets, LibreOffice, and Numbers.

JSON vs XLSX

JavaScript Object Notation (JSON)

JSON (JavaScript Object Notation) is a lightweight data format that is easy for humans to read and write, and easy for machines to parse and generate.

Common uses: APIs, web applications, and configuration files

ECMA-404 (JSON specification)

Microsoft Excel Spreadsheet (XLSX)

XLSX is the default spreadsheet format for Microsoft Excel (2007 and later). It stores data, formulas, charts, and formatting in a compressed XML-based container.

Common uses: spreadsheets, financial reports, data analysis, and business reporting

How to convert JSON to XLSX

  1. 1

    Upload

    Upload your JSON file using the drop zone above, or click to browse your device.

  2. 2

    Convert

    Click the "Convert to XLSX" button. The conversion runs instantly in your browser.

  3. 3

    Download

    Download your converted XLSX file. No data was sent to any server.

Frequently Asked Questions

Last updated: 2026-03-23