CSV ⇄ JSON converter

Convert CSV (comma or semicolon separated, as used by Swiss Excel exports) to JSON and back.

Direct answer

Convert CSV spreadsheets (automatically detecting comma `,` or Swiss/European semicolon `;` delimiters) into JSON arrays and convert JSON arrays back to RFC 4180 CSV locally.

How it's calculated

  1. Paste CSV (with header row) or a JSON array of objects.
  2. Click CSV → JSON or JSON → CSV.
  3. Copy the converted result.

Frequently asked questions

Does it handle semicolon-separated CSVs from Swiss German Excel?
Yes. If the header line contains semicolons (;), the parser automatically switches to semicolon delimiter mode.