Paste in a list — one item per line, space-separated numbers, a tab-delimited export, anything — and instantly get it back as clean CSV. Choose your input and output separators, add quoting if your system needs it, trim whitespace, strip duplicates, sort alphabetically, and control how many items appear per row. Download the result as a .csv file or copy it straight to your clipboard. Everything runs in your browser, nothing is uploaded anywhere.

No ads. No fees. No signup. Just a tool that works.