Remove Duplicate Lines

Remove duplicate lines while keeping the first occurrence of each value. Useful for cleaning email lists, log output, keyword exports, CSV snippets, copied spreadsheet columns, and prompt inputs before you paste them elsewhere. ToolMill runs entirely in your browser, so sensitive text never has to leave your device.

Text

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One line per item

Deduplicated output

Examples

Remove repeated lines

Input

apple
banana
apple
orange
banana

Output

apple
banana
orange

Ignore case and extra spaces

Input

 Alpha
alpha
ALPHA  
Beta
 beta

Output

Alpha
Beta

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