Is line matching case-sensitive?

Yes — "Apple" and "apple" are treated as different lines.

Does this change the order of my list?

No, the original order is preserved; only later duplicate copies are removed.

No hard limit — it handles large lists smoothly.

Clean up lists and data by removing duplicate lines instantly.

Private by default Instant results No signup

Processed locally

Your data never leaves your browser tab.

Keeps first occurrence

The first copy of each line is kept, in its original order.

Instant results

See the deduplicated list as you type.

Count words, characters, sentences and reading time.

Track character counts for tweets, bios and titles.

Switch between UPPER, lower, Title and Sentence case.

Sort lines A-Z, Z-A, reversed, or randomized.