How to use
A direct local workflow
- Choose your Excel workbook from this device.
- Review the detected structure and choose only the options you need.
- Run the operation, inspect the preview and download the local result.
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Excel tool
Convert Excel to JSON Online
Turn a worksheet into an array of objects or arrays, preview the JSON and download it locally.
● Local processingNo uploadFree
Choose an Excel workbook
Drag and drop here, or choose from your device.
.xlsx, .xls · Up to 50 MBDesigned for
Practical spreadsheet jobs
- Objects or arrays
- Safe header normalization
- Copy and download JSON
PapaTool does not execute macros, formulas, embedded scripts or external workbook links.
Common questions
Excel to JSON FAQ
Are my spreadsheet files uploaded?
No. PapaTool reads, transforms and exports your file inside this browser tab. File contents are never sent to PapaTool servers.
How are empty or duplicate headers handled?
Empty headers receive a column name and duplicates receive a stable numeric suffix.
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