Remove Duplicates

Keep first occurrence by line. Local processing only.

🔐 Local processing

✅ Remove duplicates by line, keeping the first occurrence.

✅ Optional: ignore leading/trailing spaces or skip empty lines.

About this tool

Clean email lists, keywords, or log lines by removing duplicates while preserving order. Paste text and dedupe instantly in your browser.

Case-sensitive dedup?

Use on-page options if available; default matching follows the tool settings shown.

Is my list uploaded?

No. Dedup runs locally.