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Simplifying spreadsheets, one file at a time.

JSON → XLSX

Create XLSX workbooks from JSON arrays or objects.

Drop or select a JSON file to convert to XLSXMax 20 MB per file

How it works

Upload a JSON file containing an array of objects, array of arrays, or an object of arrays.
The tool auto-detects the structure and maps it to rows and columns.
Click Convert to download your XLSX workbook.

Why use this tool

Turn API responses, config files, or exported data into Excel spreadsheets for analysis, reporting, or sharing with non-technical stakeholders.

FAQ

What JSON structures are supported?

Array of objects, array of arrays, and object of arrays (one sheet per key).

Are nested objects flattened?

Nested objects are serialized as JSON text in cells. Deep flattening is not applied.

Can I include column headers?

Yes. There is an option to include or exclude column headers in the output.