Tools/Text Tools/Remove Duplicate Lines

Remove Duplicate Lines

Remove duplicate lines from text.

100% on device · 0 uploads

Paste Text:

Cleaned Result:

01 · Unlimited

Use it as many times as you want — completely free.

02 · Private

Your files never leave your device; everything runs in your browser.

03 · Fast

Processing happens locally and finishes in seconds.

How to Remove Duplicate Lines

Drop any text with one item per line — emails, keywords, URLs, names.

Repeated lines are filtered out instantly in your browser, keeping the first occurrence.

Get a deduplicated list ready for mailing tools, spreadsheets or scripts.

✓One click deduplication, order preserved

✓Handles huge lists instantly

✓Perfect for email and keyword lists

✓100% local — lists stay private

Is the original order preserved?+

Yes — the first occurrence of each line stays in place; only later repetitions are removed.

Is the comparison case-sensitive?+

Lines must match exactly to count as duplicates — "Apple" and "apple" are treated as different. Normalize case beforehand if needed.

What are typical use cases?+

Cleaning email lists before campaigns, deduplicating keyword lists for ads, tidying exported URL or SKU lists.

How large can the list be?+

Tens of thousands of lines process instantly — the operation is lightweight and fully local.