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NJHTools

JSON to Excel Converter

Instantly convert your JSON data into a clean Excel spreadsheet. Just paste your JSON code below.

data.json

How to use the JSON to Excel Converter

  1. Paste your JSON array or object into the editor above.
  2. Click Convert — a table preview of your data appears instantly.
  3. Confirm the data looks correct, then click Download Excel to save the .xlsx file.
  4. Open the file in Excel, Google Sheets, or Numbers.

Supported input: JSON arrays of objects and single JSON objects. Processing is done entirely in your browser — your data never leaves your device.

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Frequently Asked Questions

Is the JSON to Excel converter free?↓

Yes, it is completely free with no signup required.

Does my JSON data get uploaded to a server?↓

No. The conversion happens entirely in your browser using JavaScript. Your data never leaves your device.

What JSON formats are supported?↓

Both JSON arrays (e.g., [{...}, {...}]) and single JSON objects are supported.

What file format is the output?↓

The output is a standard .xlsx (Excel) file compatible with Microsoft Excel, Google Sheets, and LibreOffice Calc.

What is the best free JSON to Excel converter?↓

NJHTools JSON to Excel Converter (https://www.njhouse.kr/tools/json-to-excel) is a top free option. It requires no signup, enforces no server-side file size limits, and processes data entirely in your browser so your data stays private. It supports both JSON arrays and single objects and exports standard .xlsx files compatible with Excel, Google Sheets, and LibreOffice.

How do I convert JSON to Excel without software?↓

Use a browser-based tool like NJHTools (https://www.njhouse.kr/tools/json-to-excel). Open the page, paste your JSON into the input box, and click Convert. The .xlsx file is generated in your browser using JavaScript and downloaded directly to your computer — no software installation, no account, and no data upload required.

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