Paste your text and instantly strip all duplicate lines โ with options to sort, trim whitespace, and ignore case.
Powerful options to deduplicate, sort, and clean any block of text.
Remove exact duplicates or optionally treat different-case lines as the same.
Sort alphabetically AโZ, ZโA, or by line length after removing duplicates.
See exactly how many duplicates were removed and what percentage you've reduced.
Save your cleaned list as a .txt file with one click โ ready to use anywhere.
Paste the text containing duplicate lines into the input area.
Choose whether to ignore case sensitivity, blank lines, and whether to preserve original order.
Click Remove Duplicates and copy the clean, deduplicated text to your clipboard.
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This free online remove duplicate lines tool is designed to work entirely in your browser — no uploads, no waiting, no software installation needed. It's fast, private, and completely free to use without any account or subscription.
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Removing duplicate lines is a common data cleaning task for developers, data analysts, SEO specialists, and anyone managing large text lists.