About this tool
Scans a sentence or paragraph word by word and removes any word that has already appeared earlier in the text, keeping only its first occurrence. This is different from the Duplicate Line Remover, which compares whole lines — this tool works within a single block of running text.
How to use the Duplicate Word Remover
- Paste your text into the input box.
- Choose your matching options — ignore case, and ignore punctuation stuck to a word.
- Click "Remove duplicate words" and copy the result.
Common use cases
- Cleaning up a sentence typed twice by accident, like "the the quick brown fox"
- Tidying auto-generated or dictated text where a transcription tool repeated a word
- Removing accidental word repetition introduced when merging two edited drafts of the same paragraph
Worked example
The sentence "The the quick brown fox jumps jumps over the lazy dog." contains three repeats: "the" (capitalized differently the second time), "jumps", and a third "the" later on. With Ignore case enabled, "The" and "the" are treated as the same word, so only the first is kept — the result is "The quick brown fox jumps over lazy dog." Turn that option off and "The" and "the" are treated as different words, so both survive.
Things to watch out for
This tool splits text on whitespace and rejoins the surviving words with single spaces, so original line breaks and multiple spaces are not preserved — it's built for tidying a sentence or short paragraph, not for formatting-sensitive text. "Ignore surrounding punctuation" only strips punctuation from the start and end of a word for comparison purposes (so "fox," and "fox" count as the same word) — the punctuation in the output itself is left exactly as you typed it, and punctuation in the middle of a word (like a hyphen) is not touched.
Frequently asked questions
Duplicate words, within the flow of a sentence or paragraph. For removing whole duplicate lines from a list, use the Duplicate Line Remover instead.
The first one. Every later repeat of the same word (by the matching rules you've chosen) is removed, and the remaining words are joined back together in their original order.
Yes, if "Ignore surrounding punctuation" is enabled — punctuation directly attached to the start or end of a word is ignored for comparison, though the punctuation itself is kept in whichever occurrence survives.