Remove Duplicate Lines
Clean up lists instantly: remove duplicate lines, trim whitespace, drop empty rows and sort alphabetically. See how many duplicates were removed.
Output
Frequently asked questions
How do I dedupe a list ignoring case?
Uncheck "Case sensitive" — then "Apple" and "apple" count as the same line and only the first stays.
Can I also sort the result?
Yes — enable "Sort alphabetically" and the unique lines come out in A–Z order.
Is there a size limit?
No practical limit — everything runs in your browser, even lists with hundreds of thousands of lines.