Online Duplicate Line Remover

Clean up your text and lists by instantly removing duplicate lines.

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About this Tool

This free online tool cleans up lists and text documents by instantly removing duplicate lines, ensuring data is unique and streamlined for data hygiene purposes. Its features include the removal of exact duplicate lines, case-sensitive or insensitive options for matching, an option to preserve the original order of the first occurrence, and a count of duplicates removed.

This tool is highly valuable for cleaning mailing lists or contact databases, deduplicating data entries from various sources, preparing unique lists for analysis or campaigns, and managing SEO keyword lists to avoid redundancy. The functionality is directly analogous to the uniq command in text processing, which handles duplicate lines and can count occurrences or display unique lines.