Newlines to a comma list

Paste one item per line. Get a single line joined with commas (or semicolons). Optional quotes around each item.

How to use the Newlines to a comma list

What does the Newlines to a comma list do?

Turn a column of lines into a comma-separated list; It applies this page-specific rule: spreadsheets and emails often give you a vertical list when you needed “a, b, c” for a config file, SQL IN clause, or form field.

Which inputs does this tool use?

To turn a column of lines into a comma-separated list, enter Lines, Separator, Joined; keep every value in the same example; where available, choose between ,, ; to match the required format; the page then updates the result from the current values; Start with a familiar case covered by this rule - Quotes wrap each item and double any quote inside the item - so the expected result can confirm the settings.

How should the tool result be read?

For a result intended to turn a column of lines into a comma-separated list, quotes wrap each item and double any quote inside the item; read joined together with the original lines rather than as an isolated answer, and confirm that its units or structure match the intended use.

Can I use semicolons?

When the goal is to turn a column of lines into a comma-separated list, yes - pick the separator.

Empty lines?

When using the page to turn a column of lines into a comma-separated list, dropped.

Limits and accuracy

When using this tool to turn a column of lines into a comma-separated list, reverse (commas to lines) is the same idea with the split box; check the result in its intended destination before relying on it for important work; keep lines until the output has been checked in its intended destination. For a repeatable check when you need to turn a column of lines into a comma-separated list, record Lines alongside the final output and selected options.

How this works

Spreadsheets and emails often give you a vertical list when you needed “a, b, c” for a config file, SQL IN clause, or form field. This joins non-empty trimmed lines.

Quotes wrap each item and double any quote inside the item. That is enough for a careful CSV cell, not a full RFC 4180 implementation.

Reverse (commas to lines) is the same idea with the split box.

Frequently asked questions

Can I use semicolons?

Yes - pick the separator.

Empty lines?

Dropped.

Tabs?

Not treated as separators on this page.