Remove Duplicate Words scans each line and removes repeated words while keeping the first occurrence and original word order.
Switch to "Find duplicates" mode to see which words repeat and how often, without changing your text — no signup, nothing leaves your browser.
Your text never leaves your browser. Everything is processed locally on your device.
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How do you use the remove duplicate words tool?
1. Add your text.Paste it directly, upload a file, or drop a TXT/CSV/JSON file onto the input box.
2. Adjust the options.Use the controls above the editor to fine-tune how the tool behaves.
3. Copy or download the result.Your cleaned text is ready instantly, with nothing ever sent to a server.
Need to remove duplicate lines too? Try the full Text Dedupe, which adds case-insensitive matching, consecutive-only mode, sorting, and large-file support.
Does this remove duplicate words anywhere in a line, or only right next to each other?
That's configurable. The default "Anywhere in line" scope removes a repeated word no matter how far apart the two occurrences are - "the cat sat on the mat" would still catch a repeated "the". Switch the scope to "Consecutive only" if you only want immediately-repeated words like "the the" caught, leaving non-adjacent repeats untouched.
Can I see which words are duplicated without removing them?
Yes - switch the Mode option to "Find duplicates (don't remove)". Instead of cleaning your text, the tool lists every word that repeats along with how many times it appears, and leaves your original text untouched.
Which occurrence gets kept when a word repeats - the first one, or the last?
Your choice - the "Keep" option lets you keep the first occurrence (default), the last occurrence, or remove every instance of a repeated word entirely, leaving only words that appear exactly once.
Is this the same as removing duplicate lines?
No - this tool works within each line, catching repeated words like "the the quick brown fox". For repeated lines instead, use the main Text Dedupe tool on the homepage.