GUI Hub
Free tool · runs in your browser

Excel to JSON

Convert Excel files to JSON in seconds, right in your browser. Your files never leave your device — no upload, no sign-up, no watermark.

Need more than this?

GUI Hub Data converts between Excel, CSV, Parquet and JSON at any size and lets your AI analyse the data on your computer. 3 free uses per tool; $9 once.

Private by design

The work happens in this browser tab using open-source code loaded from jsDelivr. Your files are not sent anywhere.

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