How do I get just the URLs, no other columns?

Use the TXT export format instead of CSV. TXT outputs one URL per line with no header row, no quoting and no metadata — just URLs. It's the smallest, cleanest possible export and ideal for Screaming Frog list mode, an xargs curl loop, or any URL-driven workflow that doesn't care about lastmod or priority. On xmlsitemapmaker.com, switch the export format dropdown to TXT and click Convert. If you specifically want a CSV with only the URL column, that's also fine — open the CSV in any editor and delete the other columns, or pre-filter by passing only --columns=url to a CLI converter.