JSON to CSV

Convert a JSON array to CSV — client-side, no upload.

How it works

  1. Paste a JSON array of objects (or a single object).
  2. Click Convert to CSV — columns are taken from the union of all keys.
  3. 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.