What Happens To Nested Objects?

They are stored as compact JSON text in their cell, so no data is lost — flatten them first if you want separate columns.

No. Conversion happens locally in your browser.

JSON To Excel Converter

Turn a JSON array into a formatted .xlsx workbook with columns built from the object keys.

JSON Input

An array of objects (keys become columns) or an array of arrays.

Load JSON File

Workbook

3 Rows × 3 Columns

File Name.xlsx

Name	Department	Salary
Ada Lovelace	Engineering	120000
Grace Hopper	Research	135000

Objects with different keys are merged into one column set — missing values become empty cells. Nested objects are stored as JSON text.

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What Is the JSON To Excel Converter?

The JSON To Excel Converter accepts an array of objects (keys become the header row, merged across all records) or an array of arrays, and writes a real .xlsx workbook with numeric cells stored as numbers.

How It Works

Paste JSON or load a .json file, check the preview grid and download the workbook.

When to Use It

Use it to hand API responses, exports and logs to spreadsheet users in a format Excel opens natively.

Frequently Asked Questions

What Happens To Nested Objects?: They are stored as compact JSON text in their cell, so no data is lost — flatten them first if you want separate columns.
Is My JSON Uploaded?: No. Conversion happens locally in your browser.

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