Remove duplicate lines from text. Keep only unique entries.
Paste a list of lines and instantly see only the unique entries. Perfect for cleaning up email lists, keyword lists, product SKUs, data exports, or any text that has repeated lines.
Options let you control whether matching is case-sensitive, whether whitespace is trimmed, and whether the output should be sorted alphabetically. Everything runs in your browser — nothing is uploaded.
By default, the original order is preserved (first occurrence kept). Enable the 'Sort A→Z' option if you want alphabetical output.
By default yes — 'Apple' and 'apple' are treated as different. Uncheck 'Case sensitive' to treat them as the same.
Yes. The tool runs in your browser and handles tens of thousands of lines efficiently. For very large files (100K+ lines), processing may take a second.