Convert Excel (.xlsx) or CSV files to JSON format. Supports object array and single object output modes, with column selection — all done locally in your browser.
Features
Upload .xlsx and .csv files
Object array and single object output modes
Choose which columns to include
All processing stays in your browser
How to use
1Upload a file
2Choose output mode
3Select columns to include
4Copy JSON or download the file
FAQ
What file formats are supported?
.xlsx and .csv.
What is the difference between object array and single object mode?
Object array mode converts each row to an object. Single object mode merges all rows into a single object.
Is my data uploaded to a server?
No. All conversion happens locally in your browser.
Can I convert only certain columns?
Yes. After upload, all column names are shown as checkboxes for selection.