Remove Duplicate Lines Online
Paste a list or block of text to instantly remove duplicate lines and keep only unique entries. Great for cleaning email lists, data exports, and log files.
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Example
Input
apple
banana
apple
cherry
bananaOutput
apple
banana
cherryHow to Use the Duplicate Line Remover
1
Paste your text with duplicate lines into the input area.
2
Toggle case sensitivity if needed.
3
View and copy the deduplicated output.
Frequently Asked Questions
Is the comparison case-sensitive?
By default yes, but you can toggle case-insensitive matching so 'Hello' and 'hello' are treated as duplicates.
Does it preserve the original order?
Yes. The first occurrence of each line is kept in its original position.
Can it handle large lists?
Yes. The tool runs in your browser and can process thousands of lines.