🧹 Remove Duplicate Lines
Paste a list of lines and instantly remove duplicates. Perfect for cleaning up email lists, data exports, or any text with repeated entries.
How to use
- Paste your text with one item per line into the input area.
- Toggle case sensitivity and whitespace trimming as needed.
- The deduplicated output updates automatically on the right.
About Remove Duplicate Lines
This tool removes exact duplicate lines from your text while preserving the original order of first appearances. Empty lines are preserved. You can optionally enable case-sensitive comparison or disable whitespace trimming.