How to use Remove Duplicate Lines
What Remove Duplicate Lines does#
Clean up any list by removing duplicate lines while keeping the first occurrence and the original order. Optionally ignore case or trim each line before comparing, and see how many lines were kept and removed. Runs entirely in your browser with one-click copy.
How to use it#
- Open the tool and paste or type your input.
- Choose the options you want.
- See the result instantly, updated as you work.
- Copy it to your clipboard in one click.
Your privacy#
Remove Duplicate Lines runs entirely in your browser. Your data never leaves your device — there is no upload, and nothing is stored on our servers.
Frequently asked questions
Is Remove Duplicate Lines free to use?
Yes. Remove Duplicate Lines is completely free and needs no account or sign-up.
Is my data private?
Yes. Remove Duplicate Lines works entirely in your browser, so your data never leaves your device.
Do I need to install anything?
No. Remove Duplicate Lines runs online in any modern browser, on desktop or mobile.