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Duplicate Line Remover
Remove repeated lines from pasted text lists.
Text Tools
text
duplicate
lines
Text tools
Duplicate Line Remover
Paste multi-line content to remove duplicate lines while keeping the first occurrence order, useful for lists, keywords, and config values.
Processed in your browser
This tool processes text directly in your browser without sending the content to the server.
Original lines
0
Kept lines
0
Removed lines
0
Ready to use
This tool is ready to use. Enter your content, review the result, and finish the task right away.
Key features
- Keep the first occurrence order while removing repeated lines quickly.
- Supports case-insensitive matching, whitespace trimming, and optional empty line retention.
- Shows a summary of original, kept, and removed line counts.
How to use
- Paste the multi-line content you want to clean up.
- Adjust the case, whitespace, and empty-line options if needed.
- Run the deduplication and copy the result on the right.