Duplicate Word Finder
| Input | Survives? | Why |
|---|---|---|
| #flawless | removed | whole token starts with # |
| C# tips | kept | # is mid-word, not a tag |
| @referee | removed | whole token starts with @ |
| [email protected] | kept | @ is mid-word, not a mention |
Every writer has done it: typed 'the' twice in a row and sent the document before noticing. This finder scans your text for accidentally repeated words - case-insensitive, so 'The the' counts too - and highlights each repeat with its word number, live as you type. No button, no wait, no upload: the scan happens in this browser tab.
The tool is deliberately conservative: it only flags CONSECUTIVE duplicates - the same word appearing twice in a row. Words repeated later in a sentence ('the man saw the dog') are normal English and pass clean. For broader repetition analysis, the word frequency counter shows every word's count; this one is the proofreader's net for the duplicates that sneak past tired eyes.
How to use
- Paste or type your text - repeats appear highlighted with their word positions.
- Fix each flagged duplicate; the highlights update live as you edit.
- Run a final pass in the word counter to confirm the revised word count.
Frequently asked questions
How do I find repeated words in my writing?
Paste it above - consecutive duplicates highlight automatically as you type or paste. The scanner is case-insensitive ('The the' counts) and ignores punctuation between words ('the, the' still counts), which catches the two most common forms: fast-typing doubles and edit-merge leftovers where a revision joined two sentences without removing the shared word.
Does it catch every kind of repetition?
No, by design. This tool only flags CONSECUTIVE repeats - the same word twice in a row. Words repeated later in a sentence or paragraph are normal English ('the man saw the dog') and pass clean. For a broader view of which words appear most often across your whole text, the word frequency counter shows full counts sorted by frequency.
Why did it flag a word that should be there?
A few English phrases genuinely repeat words: 'had had' in past-perfect constructions, 'that that' in sentences like 'I know that that is true', and echo questions ('never ever' is two words, not a repeat). The tool flags them because they LOOK like mistakes and deserve a second glance - but you know your sentence. Skip the flag if the repetition is intentional.
Does capitalization or punctuation matter?
Capitalization doesn't matter - 'The the' and 'THE THE' both flag, because accidental doubles happen at sentence boundaries where capitalization shifts. Punctuation between the two words also doesn't matter: 'the, the' counts as a repeat because the comma is a pause, not a word. What matters is that the two words are adjacent and identical (ignoring case).
Is my text uploaded anywhere?
No. The scan runs entirely inside this browser tab - no server, no logging, no account. Your text stays in the page's local storage on your own device (up to 20,000 characters) so a refresh does not lose it, and nothing leaves your machine unless you copy it out yourself.