Remove Duplicate Lines
Remove duplicate lines while preserving order.
Runs locally in your browser. No signup.
How it works
- 1 Paste or type your text.
- 2 Choose options if needed.
- 3 Copy the output.
FAQ
Does it preserve the order of lines?
Yes. It keeps the first occurrence of each line and removes subsequent duplicates.
Is it case-sensitive?
Yes. "Apple" and "apple" are treated as different lines.
Does it handle empty lines?
Yes. Multiple empty lines are treated as duplicates and reduced to one.
Does this tool store my input?
No. Your input is processed locally in your browser and is not uploaded or stored.