Data converter
Convert CSV to JSON
Turn a CSV table into a JSON array of objects. Free, private, and right in your browser — no upload, no watermark, no sign-up.
Drop a file here, or click to choose
The first row is used as the JSON keys.
100% private — your files never leave your device.
How it works
1
Upload your file
Drag and drop or pick your file. It's read locally in your browser — nothing is uploaded to a server.
2
Convert to JSON
We convert to json it right on your device, instantly and privately.
3
Download the JSON file
Save your JSON file. No watermark, no sign-up, no limits.
FAQ
Is it free?
Yes, completely free and unlimited, with no sign-up and no watermark.
Are my files uploaded anywhere?
No. The conversion runs entirely in your browser using on-device processing — your files never leave your computer, so it's safe for private documents.