Column to List Converter

Convert data between ten different list formats with smart auto-detection of your input. Paste a column of items, comma-separated values, tab-separated data, or even a JSON array, and convert it to any other format including comma, semicolon, tab, or pipe separated, one per line, JSON array, SQL IN clause, HTML unordered list, numbered list, or Markdown list. Toggle options to trim whitespace, remove empty lines, remove duplicates, sort alphabetically, or wrap items in quotes. The tool re-converts automatically whenever you change a format or option.