Utility · MySpeedTest.in Tools
Excel to JSON - Free Online Tool
Convert Excel or CSV to JSON — first row as keys, in your browser.
…Excel → JSON used
Free on MySpeedTest.in · Files stay in your browser · All tools · Speed test
100% local. Your files never upload to our servers — convert or compress in this browser, then download the result.
Excel / CSV → JSON — first row becomes keys. Multiple sheets become a JSON object.
Drop Excel or CSV
Tap to choose files
Stays on this device — not uploaded
How to use
- Drop an .xlsx, .xls, or .csv file.
- Wait for local conversion.
- Download the .json file.
Header row
The first row of each sheet becomes object keys. Extra sheets are grouped by sheet name.
FAQ
Multiple sheets?+
Yes — output is { sheetName: rows[] }.
Uploaded?+
No.