Is the comparison case-sensitive?

You can toggle case-sensitive comparison on or off depending on whether "Apple" and "apple" should be treated as duplicates.

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Duplicate Line Remover

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Duplicate Line Remover

Remove duplicate lines from a list while preserving the original order.

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Case-sensitive comparison

About this tool

Paste a list of lines (emails, keywords, URLs, etc.) to instantly strip out duplicates while keeping the first occurrence and original order intact. Shows how many lines were removed.

Examples

A list of 200 emails with 15 duplicates is reduced to 185 unique entries.

Frequently asked questions

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