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Extract Lines That Occur Only Once
Keep only lines that appear exactly once.
Your results will appear here.
Three steps. That’s it.
A useful toolkit for text, data, images and calculations.
- 01
Add your input
Choose a tool, enter values or select a file.
- 02
Make it yours
Adjust the options and run the action.
- 03
Take the result
Copy the result or download its file.
Non-repeating line extractor online
Find items that occur exactly once in an export. Values that repeat are excluded entirely, rather than reduced to one copy.
How to use it
Enter the source input or select Try example. Review Trim spaces, Ignore case. Select Run tool and inspect the result before copying or downloading.
Options and example settings
Worked examples
Find items that occur exactly once in an export.
Worked example — Extract Lines That Occur Only Once
Settings: Trim spaces: On; Ignore case: Off
Input:
apple banana apple
Output:
banana
Choose the right tool
Only lines with a total occurrence count of one survive. This differs from deduplication, which keeps one copy of repeated values.
Limitations and common mistakes
- Values that repeat are excluded entirely, rather than reduced to one copy.
Frequently asked questions
How can I pull out lines that occur only once online?
Enter the source input or select Try example. Review Trim spaces, Ignore case. Select Run tool and inspect the result before copying or downloading.
Where is my input processed?
The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.
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