Example
A sheet with the columns Name and Age becomes:
[
{ "Name": "Anna", "Age": 31 },
{ "Name": "Ravi", "Age": 27 }
]Format or validate the result with the JSON formatter, or convert JSON back to CSV with the JSON ↔ CSV converter.
Excel to JSON Converter
Convert spreadsheet rows to JSON objects using the first row as keys, ready for code and APIs.
Frequently asked questions
How are the JSON keys chosen?
With “Array of objects”, the first row of the sheet is used as the keys, and every other row becomes an object, like {"Name": "Anna", "Age": 31}. Choose “Array of arrays” to keep every row as a plain list, including the header.
Are numbers and dates kept?
With “Real values”, numbers become JSON numbers, TRUE/FALSE become booleans, and dates become ISO dates such as 2026-03-15. With “Values as shown”, every cell is the text Excel displays, such as 1,250.00.
What happens to empty cells?
They're left out of each object by default, which keeps the JSON small. Tick “Include empty cells” to include them as empty strings.
Is my file uploaded?
No. The conversion happens in your browser.