Excel to JSON Converter
Upload .xlsx or .xls files, preview spreadsheet data, select worksheets, and convert to clean JSON. Supports 100K+ rows with search, pagination, and one-click download.
Drag & Drop your Excel file
or click to browse
.xlsx, .xls · Max 20 MB
Upload an Excel file above to get started.
Frequently Asked Questions
Is my Excel file safe?
Yes. Your file is processed in memory on the server and never stored to disk. Sessions expire automatically after 30 minutes.
Which Excel formats are supported?
Both modern .xlsx (Excel 2007+) and legacy .xls (Excel 97-2003) formats are supported.
What is the maximum file size?
The tool supports Excel files up to 20 MB in size.
How are data types handled in JSON?
Numbers are converted to numeric JSON values, booleans (TRUE/FALSE) become JSON booleans, and empty cells become null. Everything else is a string.
Can I convert multiple sheets?
Yes. After uploading, use the sheet selector to switch between worksheets and convert each one individually.