Duplicate Line Remover

What is Duplicate Line Remover?

Duplicate Line Remover strips repeated lines from any text instantly. Paste a list, log file, or dataset and get back only unique lines — preserving the original order or sorting alphabetically.

How to use

1. Paste or type your text with duplicate lines into the input area.
2. Choose options: case-sensitive or case-insensitive matching, trim whitespace, and whether to preserve original order.
3. Click Remove Duplicates to see the cleaned text, then copy the result or compare side-by-side with the original.

Result

A developer pastes 500 log entries containing repeated error messages and reduces them to 47 unique lines, making the actual issues immediately visible.

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