Excel to JSON / CSV / HTML Converter
Convert Excel spreadsheets to JSON, CSV or an HTML table right in the browser: pick a sheet, get the result instantly. Copy or download the output.
Your files never leave your device
Frequently asked questions
Are my spreadsheets uploaded?
No — the file is parsed locally in your browser with the SheetJS library. It never leaves your device.
How are sheets handled?
All sheets are parsed; use the dropdown to switch between them. Each row becomes a JSON array, so empty cells become empty strings.
Can I convert CSV too?
Yes — CSV files open directly, and you can convert them to JSON or HTML tables the same way.