No. Processing runs locally in your browser, so your files and text do not leave your device.

How do I remove duplicate lines?

Follow the steps above to remove duplicate lines. The result is generated directly in your browser.

Yes. It is free to use with no signup.

Can I use it on mobile?

Yes. The interface works on modern mobile browsers, tablets, and desktop browsers.

Large inputs depend on your device memory and browser performance. If a file is very large, try processing fewer items at once.

Current versions of Chrome, Edge, Safari, and Firefox are recommended.

★Tools

🧹

Remove duplicate lines from any text instantly, with optional sorting.

Case-insensitive Trim whitespace Remove empty lines Sort A→Z

Lines in

Lines out

Duplicates removed

Output

Is my data uploaded?: No. Processing runs locally in your browser, so your files and text do not leave your device.
How do I remove duplicate lines?: Follow the steps above to remove duplicate lines. The result is generated directly in your browser.
Is this tool free?: Yes. It is free to use with no signup.
Can I use it on mobile?: Yes. The interface works on modern mobile browsers, tablets, and desktop browsers.
What should I know about large files?: Large inputs depend on your device memory and browser performance. If a file is very large, try processing fewer items at once.
Which browsers work best?: Current versions of Chrome, Edge, Safari, and Firefox are recommended.