A list often arrives with one item per line, but the place you want to paste it expects commas or quotes. Line Comma Formatter changes the shape of that list. It does not look up or validate the items.

Start with two items

Put apple on the first line and banana on the second line of Input list. With Output set to Add comma at end of each line, the result should be two lines: apple, and banana,.

Choose JavaScript array to see the same items inside [ and ], surrounded by double quotes. Choose SQL IN list to see ('apple', 'banana'). The result updates as you change a control; Copy takes only the current output.

Keep track of the input

Trim removes spaces at the start and end of each line. Skip empty removes blank lines. If those spaces or blank lines are meaningful, turn the checkboxes off and compare the output. Remove duplicates and Sort change which items remain and their order, so leave them off unless you actually want those changes.

A generated SQL list is for inspecting or drafting a query, not a replacement for parameterized queries in application code. Do not put untrusted user input directly into a SQL string.

Where your input goes

Processing runs in your browser. The tool does not upload your input to ilham.dev.

For more background, read Text Formatting and Cleanup.

Questions you might have

Can it keep blank lines?
Yes. Turn off Skip empty if the blank lines are meaningful. Turn off Trim lines if leading or trailing spaces should be preserved.