🧹Remove Duplicate Lines
Delete repeated lines from a list.
About the Remove Duplicate Lines
Remove duplicate lines from any list or text, with options to ignore case and trim spaces. See how many duplicates were removed. Free online duplicate line remover.
How to use the Remove Duplicate Lines
- 1Type or paste your text into the Remove Duplicate Lines box above.
- 2Choose the action or option you want to apply.
- 3Review the output and copy it with a single click.
- 4Your text never leaves your device — it's processed locally.
Why use this tool?
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Private by design
The Remove Duplicate Lines runs entirely in your browser — nothing you enter is uploaded to a server.
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Free, no signup
Use it as much as you like. There's no account, no paywall and no watermark.
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Fast & instant
Results appear the moment you type or click — no waiting, no page reloads.
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Works anywhere
Any device or browser, even offline once the page has loaded.
Frequently asked questions
Can it ignore case and spaces?＋
Yes. You can choose to trim surrounding spaces and to treat lines as equal regardless of case.