Remove Duplicate Lines
Remove repeated lines from lists of emails, names, or words while keeping the original order.
Processed on your device. Nothing you type is sent anywhere.
How to use: Remove Duplicate Lines
- Paste your list with one item per line.
- Choose whether to ignore capitalization and leading or trailing spaces.
- Copy or download a list with only unique lines—the first occurrence of each item is kept.
About this tool
Clean up email lists before sending a campaign, consolidate SEO keywords, or remove repeated codes exported from spreadsheets. Everything happens in your browser: your text isn't sent to any server.
Frequently asked questions
Will the lines be reordered?
No. The tool keeps the first occurrence of each line in its original position and removes only later repeats. To sort the lines, use Sort Lines.
Are "Maria" and "maria" considered the same?
Yes, when "Ignore case" is checked (the default). Uncheck it to treat them as different lines.
Is it really free? Is there a daily limit?
It's free with no daily limits. Processing happens on your device, so there's no per-use cost and no need to limit you.
Does it work on phones?
Yes. The site works in any modern browser on Android, iPhone, Windows, Mac, and Linux—no installation needed.
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