Duplicate Line Extractor
Pull lines that appear more than once. Everything runs on your device — fast, free, and private.
The result will appear here…
or press Ctrl+Enter
Everything runs in your browser. Your data is never sent to our servers.
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Example
Example Input
a b a c b
Example Output
a (×2) b (×2)
How to Use
- 1Paste your text/code into the Input field.
- 2If the tool has "More settings" (e.g. a pattern), fill them as needed.
- 3Click Extract (or Ctrl+Enter), then copy the result.
About Duplicate Line Extractor
Duplicate Line Extractor shows lines that appear repeatedly in your text, along with how many times.
It is useful for data auditing, finding duplicate entries, and cleaning lists.
FAQ
Is my data sent to a server?
No. Duplicate Line Extractor runs entirely in your browser — your text never leaves your device.