Duplicate Line Remover

Remove duplicate lines from any text or list instantly. Case-sensitive or case-insensitive comparison. Optionally trim leading/trailing whitespace before comparing. Remove empty lines. Choose to keep the first or last occurrence of each duplicate. Sort output alphabetically (A-Z, Z-A) or by line length. Shows the list of duplicate groups found. Displays statistics: input lines, unique count, duplicates found, removed count and percentage.