Free Remove Duplicate Lines Tool Online
Use this free tool to remove duplicate lines from text while keeping order. Fast, private, and works in your browser.
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What is Remove Duplicate Lines?
Remove Duplicate Lines deletes repeated lines from a list while keeping the original order of the first occurrence. It is handy for cleaning up exported lists, logs, keywords, and email addresses.
How to use this tool
- Paste your lines into the box.
- Choose case sensitivity and blank line options.
- Click Remove Duplicates.
- Copy the cleaned result.
Features
- Remove duplicate lines
- Optional case-insensitive matching
- Optional blank line removal
- Keeps the original order
- Shows how many lines were removed
This tool runs in your browser. Your files and text are not uploaded to our servers, and we do not store your input.
Frequently asked questions
Does it keep the original order?+
Yes. The first time a line appears it is kept; later duplicates are removed.
Can it ignore letter case?+
Yes. Turn on case-insensitive matching to treat "Apple" and "apple" as the same line.
Is my list uploaded?+
No. The text is processed locally in your browser.
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