Comma Separator – Add Commas to Lists Free
Paste a line-by-line list and instantly convert it to comma-separated values. Choose your separator, wrap in quotes, remove duplicates and trim whitespace. Instant and private.
Any Separator
Comma, pipe, semicolon, tab, space or any custom string — full control over how items are separated in the output.
Quote Wrapping
Wrap every item in single quotes, double quotes or backticks — ready for SQL IN clauses, JavaScript arrays and more.
Clean & Deduplicate
Trim whitespace, remove empty lines, remove duplicate items and sort alphabetically — all in one pass.
Split Back to Lines
Convert a comma-separated string back to a line-by-line list with one click — the reverse operation built right in.
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📖 How to Use the Comma Separator
Paste Your List
Paste or type a list with one item per line. Any line-by-line list works — names, emails, keywords, IDs, product names and more.
Choose Separator & Options
Select comma, pipe, semicolon, tab, space or enter a custom separator. Enable quoting, deduplication, sorting and whitespace trimming as needed.
See the Live Output
The output updates instantly as you change any option. The stats bar shows item count, duplicates removed and character count.
Copy or Split Back
Click Copy Output to copy the formatted list. Use Split Back to Lines to reverse the operation — paste a comma list and convert it back to separate lines.
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❓ Frequently Asked Questions
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💡 Why Use Our Comma Separator?
Any Separator
Comma, pipe, semicolon, tab, space or any custom string — full flexibility for every use case.
Quote Wrapping
Single, double or backtick wrapping ready for SQL, JavaScript arrays, Python lists and more.
Clean in One Pass
Trim, deduplicate, sort and remove empty lines simultaneously — no multiple tool steps needed.
Two-Way Conversion
Convert lines to CSV or split CSV back to lines — both directions built into one tool.
Live Preview
Output updates instantly as you change any option. No button press — see the result immediately.
Free, No Account
All separators, all options, unlimited use — completely free. No sign-up, no watermarks, no limits.
📚 Complete Guide — Comma Separator
Common Use Cases
Popular queries: comma separator online add commas to list list to csv online lines to comma separated
| Use Case | Separator | Quoting | Result |
|---|---|---|---|
| SQL IN clause | Comma | Single or double | 'a','b','c' |
| JavaScript array | Comma | Single or double | "a","b","c" |
| CSV export | Comma | None or double | a,b,c |
| Pipe-delimited data | Pipe | None | a | b | c |
| Spreadsheet paste | Tab | None | a→b→c |