Free web tool

JSON to CSV

Paste JSON, get a clean spreadsheet.

APIs speak JSON, people speak spreadsheets. This flattens nested JSON (objects inside objects, lists inside lists) into tidy columns you can open in Excel or Sheets. It all happens in your browser, so private data stays private.

Friendly errors. If what you paste isn't JSON, it says so in plain words and points at the line where it breaks. Common slips (a trailing comma, single quotes, a missing bracket) get a "Fix it for me" button.

Prefer code? API docs