JSON to XLSX Converter
Export JSON values as XLSX for compatible data exchange.
Converted in your browser. Your file never leaves your device.
Drop your JSON files here
or drag and drop · 10 MB per file
How to convert JSON to XLSX
- Choose JSON files up to 10 MB.
- Use UTF-8 JSON containing a nonempty array of objects.
- Review the report and download the XLSX file.
Where this file comes from
APIs and application exports produce JSON records as arrays of objects.
What changes in the conversion
XLSX opens in modern Excel and supports multiple worksheets. This tool writes cell values and sheet names without copying workbook features.
The union of record keys becomes the first row of one worksheet. Numbers and booleans keep their types; missing and null values become blank cells. Nested objects and arrays become JSON text. String values are stored as text, without executing formulas. Numbers use JavaScript precision; store very large integers as strings.
Size limits and browser notes
- Accepts .json files up to 10 MB each.
- You can convert several files at once; they download together as one ZIP.
- Everything runs in your browser, so very large files depend on your device's memory.
Runs in a browser worker. Limits: 10 MB input, 100 MB expanded container, 50 worksheets, 50,000 rows, 256 columns, and 100,000 selected cells. Encrypted and damaged files are rejected. Spreadsheet styling and recalculation are not supported.
FAQ
What does JSON to XLSX keep?
XLSX opens in modern Excel and supports multiple worksheets. This tool writes cell values and sheet names without copying workbook features.
Will formula-like strings run?
No. Strings beginning with an equals sign are stored as text. This converter does not create spreadsheet formulas.
Will my file be uploaded?
No. The converter and its libraries run in your browser. File contents and names are not sent to a server.
Related tools
See every tool on the Spreadsheet & Data Converter page.