Remove Duplicate Lines
Remove duplicate lines from any text block instantly. Optionally sort remaining lines alphabetically.
How to Use Remove Duplicate Lines
01
Paste your text with duplicate lines
02
Click "Remove Duplicates"
03
Copy the clean result
Why Use This Tool
100% Private
Your data never leaves your browser. Nothing is uploaded to any server.
Instant Results
Modern browser APIs deliver results in milliseconds with no waiting.
Free Forever
No subscriptions, no credits, no paywalls — ever.
Frequently Asked Questions
Is comparison case-sensitive?
You can toggle case-sensitivity on or off.
Can I sort the remaining lines?
Yes — sort alphabetically after removing duplicates.
Does it handle empty lines?
You can choose to keep or remove empty lines.
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