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
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.
Example (Input and Output)
Input
Output
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.
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. Use the Sort Text Lines tool after filtering.
Does it remove empty lines?
Not unless you also enable Remove Empty Lines.
Is my text stored?
No. Everything runs locally in your browser.