How do I remove duplicate lines from a text list?

Paste your list into the input area, choose case-sensitive or insensitive matching, and click 'Remove Duplicates'.

Does this tool sort lines alphabetically?

Yes, optional checkboxes allow you to sort remaining unique lines alphabetically or reverse order.

Yes, processing happens entirely within your web browser — no text is transmitted over the internet.

Popular

Input Text (one item per line)

Case Sensitive

Sort Result (A-Z)

Result

Yes — the first occurrence of each line is kept and subsequent duplicates are removed, maintaining the original order.

By default yes — "Apple" and "apple" are treated as different lines. Toggle case-insensitive mode if available.

Yes — use the "Remove empty lines" option along with duplicate removal for a fully clean list.