Remove duplicate lines

Clean up lists of emails, keywords, URLs or names. Each repeated line is removed and the first copy stays in place.

How to remove duplicate lines

  1. 01Paste your list with one item per line.
  2. 02Pick Case-sensitive, Ignore case or Ignore case + spaces.
  3. 03Copy the cleaned list.

FAQ

No. Everything runs in your browser with JavaScript. Nothing you type is uploaded, and closing the tab clears it.