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Convert JSON to Excel Online

Convert JSON to Excel online, free and private: your data never leaves your browser. Paste a JSON array of objects or drop a .json file, edit in a real spreadsheet grid, then download a real XLSX file that opens in Excel, LibreOffice and Google Sheets.

Drop a CSV or Excel file here

CSV · XLSX · XLS · XLSM · XLSB

or paste your data below

How to convert JSON to Excel

Three steps from JSON to a real XLSX workbook.

1. Paste JSON

Paste an array of objects, a 2D array, a keyed object or JSONLines, or drop a .json file.

2. Edit in the grid

Fix values, reorder columns, add rows. The output updates in real time as you edit the spreadsheet.

3. Download XLSX

Download a real XLSX file that opens in Excel, LibreOffice and Google Sheets. Your data never left your browser.

Need this conversion in your own app?

The file parsing behind this page is powered by TabularJS: a zero-dependency JavaScript library that converts spreadsheet files to JSON in Node.js and the browser. 16+ formats, formulas, styles and merged cells included.

npm install tabularjs Zero dependencies

Frequently asked questions

Is this JSON to Excel converter free?

Yes. No account, no sign-up, no watermark. Open the page and start converting.

Is my data private?

Yes. Everything runs in your browser. Your JSON is read and processed on your device. Nothing is uploaded, nothing is logged.

Which JSON input shapes are accepted?

An array of objects (most common), a 2D array, a keyed object, and JSONLines (one JSON object per line). The tool detects the shape automatically.

How are nested objects handled?

Nested objects and arrays are serialized to a JSON string inside the cell, so no data is lost. Flatten them in the grid if you prefer separate columns.

Does the XLSX file preserve data types?

Numbers are stored as numeric cells, text as text. The converter uses the TabularJS engine which handles type inference.

Can I embed this converter in my own app?

Yes. The engine that powers this page is the TabularJS JavaScript library. You can embed it in React, Vue, Angular or plain JavaScript.