CSV to JSON

CSV → JSON, RFC 4180

CSV input

JSON output

Output will appear here

More browser-only tools, free and no upload.

Questions

Is CSV to JSON free?
Yes. CSV to JSON is completely free, with no account, no sign-up, and no usage limits. It runs entirely in your browser.
Do my files get uploaded when I use CSV to JSON?
No. CSV to JSON processes everything on your device, so your files and text never leave your browser. You can verify it yourself: open your browser's Network tab and you'll see no uploads.
How do I use CSV to JSON?
Open CSV to JSON in your browser, no install or sign-up needed, then paste, type, or drop in your input and the result appears instantly. Convert CSV to JSON, browser-only, RFC 4180 compliant (handles quoted fields, embedded commas/newlines/quotes). Configurable delimiter, optional type coercion for numbers/booleans, pretty-print toggle.
Is there a file size limit in CSV to JSON?
There's no hard file or text size limit. Because CSV to JSON runs locally in your browser, the only ceiling is your device's available memory, and everyday files process instantly.