CSV to JSON & back
Convert CSV to JSON or JSON to CSV — instantly, in your browser. Quoted fields, custom delimiters and headers are handled. Nothing is uploaded.
Delimiter
Input
Output
Everything runs in your browser. No upload, no sign-up.
How it works
STEP 1
Pick a direction
Choose CSV to JSON or JSON to CSV. Set the delimiter and whether the first row is a header.
STEP 2
Paste your data
Drop in CSV or a JSON array — the result is generated instantly, right on your device.
STEP 3
Copy or download
Grab the result with one click, or download it as a file. Everything stays on your device.