Duplicate Line Remover
Delete repeated lines from lists with case and trim options. Remove duplicate lines from any list or dataset online. Case-sensitive matching, whitespace trimming and a count of removed duplicates. Free and private.
About the Duplicate Line Remover
Mailing lists, keyword exports and log files collect repeats — this tool removes them in one pass. Paste your list and every duplicate line is dropped, keeping the first occurrence. Fine-tune the matching with case-sensitive and trim-whitespace options, useful when "Apple", "apple " and "apple" should be treated as the same entry. You also get a before/after count so you know exactly how many duplicates were cleaned.
How to use the Duplicate Line Remover
- Paste your list — one item per line.
- Choose whether matching should ignore letter case.
- Enable trimming if lines may carry stray spaces.
- Click Remove Duplicates and copy the clean list.
Key features
- Keeps the first occurrence of every line
- Optional case-sensitive comparison
- Optional trimming of leading/trailing spaces
- Shows how many duplicate lines were removed
Does the order of lines change?
Can it handle thousands of lines?
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