JSON to Excel Converter Online
Turn JSON data into a downloadable Excel (.xlsx) file, or read an Excel file and export it as JSON — all in your browser with no uploads.
How to convert JSON to Excel
Paste an array of JSON objects and click Download .xlsx — your data becomes a spreadsheet with headers and rows, ready for analysis in Excel.
For the reverse, upload an .xlsx, .xls, or .csv file and get clean JSON output you can use in apps, APIs, or databases.
- Choose JSON → Excel or Excel → JSON
- Paste JSON or upload a spreadsheet
- Download the .xlsx or copy the JSON
Private spreadsheet conversion
Spreadsheets often contain confidential data. Because everything runs in your browser, your files never leave your device.
Frequently Asked Questions
Can I convert a real .xlsx file to JSON?
Yes — upload an .xlsx, .xls, or .csv file and the tool reads the first sheet and outputs it as JSON.
Does it handle nested JSON?
Nested objects and arrays are flattened into columns automatically for the Excel output.
Is the conversion private?
Yes — it is 100% client-side, so your data is never uploaded anywhere.