Duplicate Line Remover
Paste a list, remove duplicate lines instantly, and keep only unique lines — in your browser, privately.
Options
How to use
- Paste your list — one item per line — into the input box.
- The unique lines appear instantly (as you type) in the output box.
- Optionally ignore case, trim whitespace, drop empty lines, sort, or keep first/last occurrence.
- Copy the result or download it as a
.txtfile.
Ideal for cleaning email lists, keyword lists, CSV rows, log files and anything with repeated lines. Everything runs locally — nothing is uploaded.
FAQ
Does it keep the original order?
Yes, by default. The first occurrence of each line stays in place; later repeats are removed.
Is my data safe?
Yes. Deduplication happens in your browser only — no server, no logs, no storage.
Can I handle large lists?
Yes, it handles thousands of lines comfortably. Extremely large files may cause a brief pause while the diff renders.
Related text tools
More FAQs
Are the text tools free?
Yes, free and unlimited with no signup.
Is my text stored anywhere?
No. Everything runs in your browser and nothing is uploaded or stored.
Related searches
text tools, duplicate line remover, line sorter, word counter, text case converter, find and replace text, list to csv, text cleaner, text utilities, count words online