How to use Remove duplicate lines
- Paste your list, one item per line.
- Pick the matching options.
- Press Remove duplicates and copy the clean list.
Questions
Which copy is kept?
The first time a line appears. Later repeats are removed and the order stays the same.
Can I dedupe and sort at once?
Dedupe here, then paste the result into Sort lines.
Is my text uploaded to a server?
No. The tool runs in your browser and works on your text directly on your device. Nothing is sent to us or anyone else, which is why it also keeps working if your connection drops after the page loads.
Last updated 13 November 2026.