How to use
- Paste your list, one item per line.
- Choose whether case and spacing should be ignored when matching.
- Copy the de-duplicated list.
About this tool
Deduplicate a list so each line appears only once. Great for cleaning email lists, keyword lists, or any set of values with repeats. Free online text tools. Everything runs in your browser — your text never leaves your device.
FAQ
Which copy is kept?
The first occurrence of each line is kept and later duplicates are removed, preserving order unless you enable sorting.
Are near-duplicates with different capitalisation removed?
Only if you enable “Ignore case”, which treats “Apple” and “apple” as the same line.
Does it remove duplicate words within a line?
No — it works on whole lines. Use Find & Replace for within-line changes.