Duplicate Line Remover

When duplicate removal is essential

Working with exported spreadsheets, email lists, keyword sets, log files or CRM exports almost always produces duplicate entries. Removing them manually is error-prone when the list has thousands of rows. Paste the whole list here and the tool handles it in real time, no matter the size.

Options explained

Case sensitive treats "Apple" and "apple" as different lines. Disable it to deduplicate regardless of capitalisation. Trim whitespace removes leading and trailing spaces from each line before comparing, so " hello " and "hello" are treated as the same. Sort output alphabetically reorders the unique lines after deduplication. Remove empty lines discards any blank lines from the output.