How to convert Excel to JSON
- Upload – click “Choose files” or drag your Excel files into the box above (.xlsx, .xls, .ods).
- Convert – press the button; Kitbly processes your file on a secure server in seconds.
- Download – save your JSON. The file is deleted from our servers automatically after 1 hour.
About Excel to JSON
Use spreadsheet data in code, APIs or no-code tools. The first row becomes the keys, each following row becomes an object, and workbooks with several sheets give one array per sheet.
Frequently asked questions
How are numbers and dates handled?
Numbers stay numbers and dates become ISO 8601 text such as 2026-10-23T00:00:00.
Which files can I upload?
XLSX, XLS and ODS. For CSV use the CSV to JSON tool.
Is my document kept?
No. Files travel over an encrypted HTTPS connection, are converted automatically and are permanently deleted after 1 hour. Nobody looks at them and they are never used for AI training.
Is Excel to JSON free?
Yes – completely free, with no account, no daily limit and no watermark.
Are my files safe?
Files are sent over an encrypted HTTPS connection, processed automatically by our servers, never shared and permanently deleted after 1 hour. Nobody looks at your documents.
Do I need to install software or sign up?
No. It works in any browser on Windows, Mac, iPhone and Android. No account needed.
Is there a watermark?
Never. Your converted files are clean, with no watermark or branding.