Comma Inserter
Add a comma to the end of every line — useful for turning a list into code-ready values — or switch the separator to a semicolon, pipe, or anything custom.
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About this tool
Adds a comma (or another separator) to the end of every line — handy for turning a list into code-ready values.
How to use it
- Paste your list, one item per line.
- Pick a separator.
- Copy or download the result.
FAQ
What if a line already ends with a comma?
By default the tool won't add a second one — turn off 'skip if already ends with separator' if you want it added regardless.
Can I replace a line's existing punctuation instead of just appending?
Yes — turn on 'replace existing end punctuation' to strip a trailing period, comma, semicolon, colon, question mark, or exclamation mark before adding the separator.
Does it have to be a comma?
No — pick a semicolon, pipe, or type any custom text to use as the separator instead.
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