Quick Answer
A comma-separated list is made by joining your lines with commas: paste one value per line and the list becomes “a, b, c” with a comma, comma and space, or any custom delimiter between values, optionally wrapping each value in quotes so embedded commas survive CSV round-trips. The Comma Separator at practicalwebtools.com/text/comma-separator also runs in reverse, turning CSV text back into one value per line, with live counts. It runs entirely in this browser tab — check the Network tab.
How It Works
Paste your values, one per line
Pick the delimiter: comma, comma and space, or custom
Optionally quote-wrap values for CSV safety and strip empty lines
Copy the joined list — or switch direction to split CSV back into lines
Key Facts
- Lines to list: one value per line becomes “a, b, c” instantly
- Choose plain comma, comma and space, or any custom delimiter
- Optional quote-wrapping follows RFC 4180 — embedded quotes are doubled, so commas inside values survive
- Reverse mode splits comma-separated text back into one value per line, quote-aware
- Strip-empty option drops blank lines and empty fields in both directions
- Live counts for lines, words, characters, and number of values
- Typical uses: SQL IN lists, spreadsheet imports, tag lists, and keyword exports
- It runs entirely in this browser tab — check the Network tab: your values are never uploaded
Frequently Asked Questions
How do I convert a list to a comma-separated list?
Paste the list with one value per line, pick your delimiter — comma, comma and space, or a custom one — and the joined result appears immediately. Turn on “Quote-wrap values” first if any value contains a comma, and copy the result. That is the whole workflow; there is nothing to format or install.
How do I make a comma-separated list in Excel or Google Sheets?
In sheets, =TEXTJOIN(", ", TRUE, A1:A10) joins a range with commas (TRUE skips blanks). In Excel you can also use Power Query, and Google Sheets has a JOIN function. Those need your data in cells already; this tool is the plain-text path — paste from anywhere, join, copy back — and it handles the quoting rules TEXTJOIN does not.
When should values be wrapped in quotes?
Whenever a value contains a comma, a double quote, or a line break and the output is heading for anything CSV-shaped (Excel import, database loader, pandas). Per RFC 4180, such fields are wrapped in double quotes and any embedded double quote is doubled (“” stays one quote). With quote-wrapping on, the value Say "hi", please becomes "Say ""hi"", please" and round-trips exactly through the reverse mode.
Can this split a comma-separated list back into lines?
Yes — switch the direction to “Comma list → lines”. The parser is quote-aware, so commas, quotes, and line breaks inside quoted values are kept intact, and it accepts CRLF, LF, or CR line endings. Each value lands on its own line, ready for a spreadsheet column or a code array.
Does it remove empty lines?
If you want it to. “Strip empty lines” is on by default and drops blank lines before joining, and empty fields when splitting. Turn it off to keep positional meaning — for example when a blank entry stands for an omitted value in a fixed-format row.
Is my data sent to a server?
No. It runs entirely in this browser tab — check the Network tab: no request carries your text. Lists converted here are often customer or product data, so the tool is built to work offline after the page loads.