Duplicate Line Remover
Paste a list and instantly remove repeated lines, keeping only the first occurrence of each.
—
How to use this tool
- 1Paste your list into the box — one item per line.
- 2Optionally trim whitespace or ignore case when comparing lines.
- 3Copy the deduplicated result with the copy button.
Frequently asked questions
Which occurrence does this tool keep — the first or the last?+
The first occurrence of each line is kept; every later repeat of that same line is removed.
Does this tool store or send my text anywhere?+
No — deduplication happens entirely in your browser. Nothing you paste is uploaded or saved.
Can I ignore capitalization when comparing lines?+
Yes — turn on "Ignore case" and lines that only differ by capitalization (like "Apple" and "apple") will be treated as duplicates.