Line break to comma
Convert line-by-line lists to comma-separated text or split comma-separated values back to lines.
Ctrl + L clear | Ctrl + Shift + C copy output
What this tool does
The line break to comma converter takes a list with one item per line and joins all the lines together with a comma or any separator you choose. The reverse direction takes a comma-separated string and splits it back into individual lines. Both conversions happen instantly as you type with no button press required.
Common use cases
Developers frequently need to paste a column of values from a spreadsheet into a SQL query as a comma-separated list — this tool handles that in one step. SEO professionals convert keyword lists from one-per-line format to comma-separated for uploading to tools. Data analysts format lists for use in filter inputs, search forms, and configuration files. Email marketers convert address lists between formats for different mailing platforms.
Lines to comma vs comma separator
This tool is intentionally simple — fast conversion between two common formats. For more advanced options like deduplication, sorting, quote wrapping, and multi-separator support visit the Comma separator tool. Both tools serve different needs depending on how much control you need over the output.
Frequently asked questions
How do I convert a list to comma separated values?
Paste your list with one item per line into the left panel. The comma-separated result appears instantly on the right.
Can I convert comma separated text back to a list?
Yes. Switch to Comma to Lines mode and paste your comma-separated text. Each value splits onto its own line.
Can I use a different separator?
Yes. Choose comma, semicolon, pipe, space, tab, or enter any custom separator character using the controls above the panels.
Can I remove blank lines from the list?
Yes. The Remove blank lines option is enabled by default and skips empty lines when converting.
What is the difference between this and the comma separator tool?
This tool is fast and simple. The comma separator tool has advanced options like deduplication, sorting, and quote wrapping.