ลบบรรทัดที่ซ้ำกัน

คำถามที่พบบ่อย

›Is the original order preserved?

Yes — we keep the first occurrence of each line and remove subsequent duplicates.

›Is it case-sensitive?

Default is case-insensitive. Toggle for case-sensitive matching.

›Does it ignore whitespace?

Optional — toggle 'trim whitespace' to ignore leading/trailing spaces when comparing.

›Is my text uploaded?

No — runs entirely in your browser.

›Is the tool free?

Yes — fully free, no signup.