CSV to JSON free online, without uploading

Convert a CSV table to JSON data. The first row gives the field names.

1. Choose your file (or drop it on the page).
2. Pick the options you want.
3. Download the new file, or save or share it.

Is it really free?

Yes. No account, no adverts, no watermark and no limit on how many files you convert.

Is my file uploaded?

No. Karatasi works inside your browser, so your file is opened and converted on your phone or computer and never sent to a server.

Does it work on a phone?

Yes: Android, iPhone, Windows and Mac, in Chrome, Edge, Firefox or Safari.

All Karatasi tools · Convert any file