Convert Lines to Comma Separated List
Turn a column of values into one comma-separated line ready for SQL, JavaScript or a spreadsheet formula. Free, nothing is uploaded.
Scan to open on your phone
Point your phone camera at the code to open this tool.
Turn a column of values into one comma-separated line ready for SQL, JavaScript or a spreadsheet formula. Free, nothing is uploaded.
How to use Convert Lines to Comma Separated List
- Paste or type your contentThe result appears as you type — there is no submit button.
- Set “Separator”
- Read and copy the resultThe output updates live and the copy button takes it in one click.
Worked example
- alice bob carol
- alice, bob, carol
Nothing you enter leaves your device
All of the work happens inside your browser. Whatever you type is never packaged up and sent to a server, and no request this page makes carries it.
That makes it safe for contract amounts, personal details and internal documents you would rather not hand to a third party — close the tab and it is gone.
What this tool does not do
Convert Lines to Comma Separated List only does what a browser can do on its own — it talks to no backend service. So it keeps no history for you and syncs nothing across devices; if you need a record, copy or download the result.
It is also not a substitute for professional judgement. For legal, medical or tax decisions, treat the output as a starting point rather than a final answer.
Frequently Asked Questions
- What separator is used?
- A comma followed by a space by default. You can change it to a plain comma, semicolon, pipe or anything else.
- Can I quote each value?
- Use the add prefix and suffix tool to wrap every line in single quotes before joining.
- Where do I get the column values?
- Copy the column straight out of Excel or Google Sheets and paste it in — one value per line works.