List to Comma-Separated
Convert a list (one item per line) into a comma-separated line.
You've got a column of values — names, IDs, emails — one per line, and you need them as a single comma-separated line: for an SQL IN clause, a spreadsheet cell, or a config value. Doing it by hand means deleting line breaks and adding commas one at a time.
Paste your list and this tool joins the lines into a comma-separated string, ignoring blank lines and trimming each item. It's the counterpart to the Comma-Separated to List tool — this collapses a column into a line, that expands a line into a column.
How to use List to Comma-Separated
- 1
Paste or type your text
Enter the text you want to transform.
- 2
See the result
The output updates instantly as you type.
- 3
Copy the result
Use it wherever you need it.
Features
- Instant transformation
- Runs privately in your browser
- Handles Unicode text
Frequently asked questions
Common mistakes to avoid
- Expecting the change to be reversible when it isn't — keep your original text.
- Applying it to content where the original formatting was meaningful.
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