Remove Duplicate Lines
Clean a list by keeping only the first copy of each line. Handy for email lists, keywords, URLs and data exports. Everything runs in your browser. Your files and text are not uploaded to our servers.
Use the tool
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How to use it
- Paste your list, one item per line.
- Choose whether upper and lower case count as different, whether to trim spaces and whether to drop empty lines.
- Read the result and the counts, then select Copy result.
Tips for best results
- Keep Trim spaces on so that "apple" and "apple " count as the same line.
- The original order is kept; only later repeats are removed.
Frequently asked questions
Does it remove all copies or keep one?
It keeps the first copy of every line and removes later repeats.
Is case sensitivity on by default?
No. "Apple" and "apple" are treated as the same unless you tick Case sensitive.