JSON to Excel
Convert a JSON array to an Excel (.xlsx) spreadsheet online. Nested keys are flattened into columns and the file downloads instantly.
- 100% client-side, nothing uploaded
- Instant results
- Works offline once loaded
Paste a JSON array of objects, then export it as an Excel spreadsheet.
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How it works
About this tool
This JSON to Excel exporter turns a JSON array of objects into a real .xlsx workbook you can open in Excel, Numbers, or Google Sheets. Each object becomes a row and the union of all keys becomes the column headers.
Nested objects are flattened into dot-notation columns so complex payloads still map to a flat sheet. Arrays are written as JSON text in a single cell so nested lists are not dropped.
Use it when stakeholders need a spreadsheet instead of raw JSON — reporting exports, QA samples, or one-off data handoffs.
The workbook is generated in your browser and downloaded directly. Because nothing is uploaded, it works offline once loaded and stays private.
JSON Toolbox processes all data locally in the browser. Nothing is uploaded to a server.
Common questions
Frequently asked questions
How do I convert JSON to Excel?
What format is the downloaded file?
How are nested objects handled?
Is my data uploaded to build the spreadsheet?
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