OomTools

Comma Separator & List Converter

Switch a list between one-item-per-line and comma-separated form, optionally wrapping each item in quotes — handy for turning a column into an SQL IN() list or a CSV row and back. Runs in your browser.

  • 100% free
  • Private & safe
  • Runs in your browser

Why use Comma Separator / List Converter?

Comma Separator / List Converter is a fast, distraction-free way to work with text: paste your content, transform it, and copy the result instantly.

  • Runs instantly in your browser — nothing to install, nothing uploaded.
  • Completely free, with no account, no watermarks and no usage limits.
  • Modes: lines↔comma, optional quoting
  • Paste your list.
  • Works on any device — desktop, tablet and phone — and is fully keyboard accessible.

How to use Comma Separator / List Converter

  1. Paste your list.
  2. Choose the direction.
  3. Optionally wrap items in quotes.
  4. Copy the result.

Examples

  • Turning a column of IDs into a comma list.
  • Making a quoted list for code.

Supported formats & limits

  • Modes: lines↔comma, optional quoting

Limitations

  • Trims blank items; doesn't parse full CSV quoting rules.

Frequently asked questions

Can it quote items?

Yes — tick the option to wrap each item in double quotes.

Blank lines?

Ignored.

Uploaded?

No — local only.

Was this tool helpful?