Remove Duplicate Lines
Use our free remove duplicate lines tool instantly.
Key capabilities
- Remove duplicate lines from text while keeping the first occurrence.
- Runs in your browser
- Free to use
How to use
- Paste or type your text.
- View results instantly.
- Copy output.
How this tool works
- Paste or type your text.
- View results instantly.
- Copy output.
Recommended settings
- Use the default options first, then adjust if needed
Supported formats
Text / on-page input
File size and limits
- Very large pastes may slow older devices.
Privacy
Text tools run in your browser. Your text is not uploaded to our servers for formatting or counting tools.
Common use cases
- Use Remove Duplicate Lines whenever you need: Remove duplicate lines from text while keeping the first occurrence.
Troubleshooting
Formatting looks wrong
Check indentation options and try a smaller sample to isolate invalid syntax.
FAQ
Is my text uploaded to a server?
No. Text tools run entirely in your browser. Your input is never sent to our server.
Are blank lines kept?
Duplicate non-empty lines are removed. Empty lines can be trimmed depending on options.