Remove Duplicate Lines
Remove repeated lines from a list, keeping only the first occurrence in order.
วิธีใช้
Paste your list, one item per line, and copy the deduplicated result.
วิธีการทำงาน
Keeps the first time each line appears and drops later duplicates.
คำถามที่พบบ่อย
Is it case-sensitive?
Yes, lines must match exactly.
Is it free?
Yes.