Remove duplicate lines from text and delete repeated words online free. Clean email lists, keyword exports, and data instantly — no upload, no signup needed.
The fastest way to remove duplicate lines from text is to paste your content here and click one button. This Duplicate Word & Line Remover works in two modes: Word Mode removes all repeated individual words from throughout the text, keeping only the first occurrence of each; Line Mode removes duplicate lines, which is ideal for cleaning email lists, URL exports, and keyword databases. Need to delete repeated words online before sending a campaign? Deduplicating a scraped list of URLs? Cleaning a keyword export? This tool handles all of it instantly, with no file upload and no data leaving your browser. Turn on case-insensitive matching so entries like "Apple" and "apple" count as the same item — essential for email addresses and product names. The tool also functions as a unique word list generator: switch to Word Mode, paste your raw vocabulary bank, and every word will appear exactly once in the output. Completely free, no account required.
The Duplicate Word & Line Remover scans your pasted text and removes every repeated instance, keeping only the first occurrence of each word or line. For line-level deduplication, the tool splits text on newlines and compares each line exactly — including capitalisation and leading/trailing whitespace by default. For word-level deduplication, it tokenises on whitespace and punctuation and removes subsequent occurrences of any word that has already appeared in the document. A case-insensitive option normalises all text to lowercase before comparison, so "Apple" and "apple" are treated as the same token. The clean output is displayed instantly and can be copied with a single click. No data is sent to any server — all processing runs locally in your browser using JavaScript, so your content stays private.
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