๐งน Duplicate Line Remover
Remove duplicate lines from a block of multi-line text, keeping only each item's first occurrence. Useful for cleaning up a list, or removing duplicates from an email list or product name list.
How to use
- Enter the text you want to de-duplicate, one item per line.
- Toggle "Case-insensitive" and "Trim leading/trailing whitespace" as needed.
- The de-duplicated result appears automatically. Use the "Copy" button to copy it.
FAQ
Is the original line order preserved?
Yes โ each item stays in the order it first appeared, and only later duplicate occurrences are removed.
Are lines that differ only by leading/trailing whitespace treated as duplicates?
With "Trim leading/trailing whitespace" on, differences in leading/trailing whitespace are ignored when checking for duplicates. With it off, whitespace differences make lines count as distinct.
Can I see how many lines were removed?
Yes โ the number of removed lines is shown next to the options.