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Comma Separator Tool

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Turn a list of items (one per line) into a clean comma-separated string — with optional quotes, trimming, blank-line removal, and de-duplication. You can also reverse the process to split a comma list back into lines.

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How to use Comma Separator Tool

  1. Paste your list with one item per line.
  2. Pick a separator and optional quote wrapping, and toggle trim, blank-line removal, or dedupe.
  3. Copy the comma-separated result — or click Reverse to split it back into lines.

What is Comma Separator Tool?

This tool solves a very common everyday task: taking a column of values and joining them into a single comma-separated line, or vice versa. It is handy for building SQL IN (...) clauses, CSV cells, tag lists, configuration arrays, and email recipient lists.

You can choose the exact separator, wrap each item in single quotes, double quotes, parentheses, or brackets, trim whitespace, drop blank lines, and remove duplicates. The Reverse button splits a separated string back into one item per line. Everything happens locally in your browser.

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FAQ

Can I wrap each item in quotes?
Yes. Choose single quotes, double quotes, parentheses, or brackets to wrap each value — useful for building code or SQL lists.
How do I convert a comma list back into lines?
Click the Reverse button. The tool splits the result on your chosen separator and puts each item on its own line.
Does it remove duplicates and blank lines?
Yes. Toggle the dedupe and remove-blank-lines options. Trimming whitespace from each item is also available.

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