JSON to CSV
Convert a JSON array to CSV — client-side, no upload.
How it works
- Paste a JSON array of objects (or a single object).
- Click Convert to CSV — columns are taken from the union of all keys.
- Copy the resulting CSV.
Frequently asked questions
- Is my data uploaded?
- No. Conversion happens entirely in your browser; nothing leaves your device.
- What if objects have different keys?
- The header row is the union of all keys; missing values are left blank.