Comma Separator

Turn a column list into comma-separated values and back. Free, no sign-up, works in your browser.

Separator Wrap in Remove duplicates Sort Trim

🔒 100% private — processing happens in your browser. Nothing is uploaded.

How to use the comma separator tool

Paste a column of values (from Excel, Google Sheets or a text file) on the left.
Choose the separator and optional quotes, then click Column → list.
Or paste a comma-separated list on the right and convert it back into one item per line.

Perfect for building SQL “IN (…)” lists, e-mail recipient lists, tags, keyword lists and code arrays. Duplicate removal and sorting help clean messy lists at the same time.