Free online tools
Remove duplicate lines
Clean up a list while keeping your original. Ignore case or edge spaces, optionally sort, then copy or download the unique lines.
How to use this tool
Paste one entry per line. Choose whether edge spaces and case should affect matching. Keep the original order or sort the result. The summary shows line counts before and after.
Method and limits
The first occurrence is preserved exactly. Ignoring spaces affects comparison, not the retained spelling. Blank lines are also deduplicated. This does not parse CSV columns or Excel sheets.
