Duplicate Lines Remover — Remove Duplicate Lines

Tired of repeated lines in a list — names, numbers or a long list of data? Paste your text and keep the first copy of each line and remove the rest. Nothing is uploaded — all the work happens in the browser.

Paste text (one item per line)

Keep case-sensitive (treat Ali and ali as different — otherwise they count as the same)

Remove empty lines

Remove spaces from the start and end of each line

Before (total lines)

—

After (unique lines)

—

Lines removed

—

Clean result

⬇ .txt Download

How to Use

Paste text — each item on its own line.
Change the options if needed (case-sensitive, empty lines).
Press Remove Duplicates — the first copy stays in its place, the rest are removed.
Copy the result or download it as .txt.

Frequently Asked Questions

Which copy stays — the first or the last?

The first copy stays in its original place, and every later repeat is removed. The order of the list does not change.

Will Ali and ali count as the same?

By default, yes — if the case-sensitive box is unticked, 'Ali' and 'ali' count as the same line. Tick case-sensitive to keep them separate.

Is my text saved anywhere?

No. Your text is only processed in your browser — no server, no upload, no saving.