Keep Unique Lines Only
Need to keep only the lines that appear once? This tool removes any line that is duplicated and leaves only unique entries.
Paste your list, keep unique lines, and copy the filtered output instantly.
Input Text
Cleaned Text
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Try It in 30 Seconds
Paste a list that contains duplicate lines.
Keep "Keep Unique Lines Only" enabled.
Click Clean Text to keep only single-occurrence lines.
Examples
Example 1
Input
alpha beta alpha gamma beta delta
Output
gamma delta
Example 2
Input
one two two three four four
Output
one three
Example 3
Input
id id name email email
Output
name
How It Works
Paste line-separated data into the tool.
Remove any line that appears more than once.
Copy the unique-only list for your workflow.
Common Sources
Frequently Asked Questions
How is this different from removing duplicates?
Remove Duplicate Lines keeps the first instance. This tool removes all duplicates entirely.
Is the matching case-sensitive?
Yes. Lines are compared exactly as written.
Can I sort the results?
Yes. Enable Sort Text Lines after filtering.
Does it keep empty lines?
Only if you leave Remove Empty Lines off.
What is a good use case?
Finding values that appear only once in a list.