JSON to Excel Converter - Export JSON to XLSX Online

Convert JSON to Excel spreadsheet (XLSX) in your browser. Handles nested objects and arrays with flattening options. Free, private, no uploads required.

Drag & drop JSON file here

or click to browse

Or paste JSON content

Options

Sheet Name

Flatten nested objects

Join arrays with semicolons

Auto-format numbers and dates

Preview

Enter JSON data or upload a file to preview

Rows

Columns

Cells

Success!

Security: Only process files from sources you trust. All processing happens locally in your browser.

TSV to CSV Converter - Tab to Comma Sepa…

Excel to Markdown Table Converter Online

ODS to XLSX Converter - OpenDocument to …

CSV to Excel Converter - Transform CSV t…

XLSX to ODS Converter - Excel to OpenDoc…

View all Spreadsheet converters →

Frequently Asked Questions

Arrays of objects work best. Each object becomes a row, and keys become column headers. Nested objects are flattened using dot notation (e.g., 'user.name'). Single objects are automatically wrapped in an array.

Nested objects can be flattened using dot notation (user.address.city → 'user.address.city' column) or kept as JSON strings. Toggle the 'Flatten nested objects' option to control this behavior.

Arrays within objects can be joined with semicolons or kept as JSON strings. For example, tags: ['dev', 'design'] becomes 'dev; design' when flattened. Complex nested arrays are stringified.

Yes! Enter a custom sheet name in the options. The default is 'Sheet1' but you can name it anything appropriate for your data.

Yes. The XLSX format is fully compatible with Microsoft Excel, Google Sheets, LibreOffice Calc, and other spreadsheet applications.

The preview shows up to 20 rows and 10 columns of your converted data in a table format before downloading, so you can verify the conversion is correct.

Absolutely. All conversion happens in your browser using SheetJS. Your JSON data never leaves your device or gets uploaded to any server.

Yes! Paste JSON directly from API responses, database exports, or any JSON source. Perfect for converting API data to spreadsheets for analysis.

Browser-based conversion can handle files up to several hundred MB depending on your device's memory. For very large datasets, consider splitting into smaller batches.

Yes! Both upload and paste are supported. Drag and drop a .json file or use the file browser to upload your JSON file for conversion.

Preview

Related Tools