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Remove Duplicate Lines
Paste a list and remove duplicate lines — keep original order or sort, with a count of what was removed.
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About the Remove Duplicate Lines
Removes duplicate lines from a list while keeping the first occurrence — a quick way to clean up email lists, keywords, URLs or any line-based data.
What this tool checks
- Removes repeated lines
- Keeps original order
- Shows how many were removed
Frequently asked questions
Does it trim whitespace?
Yes — lines are trimmed and blank lines dropped before comparison, so near-duplicates are caught.
Is it case-sensitive?
Yes — 'Apple' and 'apple' are treated as different. Lowercase first if you want them merged.
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