Remove Duplicate Lines
Remove duplicate lines from a list or text, keeping the first occurrence. Paste your text below and copy the result. Everything runs in your browser, so your text never leaves your device.
Removes duplicate lines, keeping the first occurrence.
🔒 Everything runs in your browser — your text is never uploaded.
🔒 Tout se passe dans ton navigateur — rien n'est envoyé ni stocké.
Questions fréquentes
- How do I use the remove duplicate lines?
- Paste your text in the box and the result appears instantly below, ready to copy. There's nothing to install and no account needed.
- Does it work with large text?
- Yes. Because it runs locally in your browser, you can process large blocks of text quickly, limited only by your device.
- Is my text uploaded anywhere?
- No. The processing happens entirely on your device, so your text is never sent to a server or stored.