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Remove Duplicate Lines

Remove duplicate lines from any text instantly. Just paste your text and get clean, deduplicated output.

Runs in your browser · No data sent anywhere
Paste your text here
Unique lines only
Copied!
100%
Browser-Based
0
Data Uploaded
yes
Preserves Order
∞
Free Uses
Instant Results
Preserves Order
100% Private
Large Files

Perfect For

Lists Email lists, contact lists, URLs
Code Import statements, arrays, data
Data CSV rows, log entries, records
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Frequently Asked Questions

How does the tool determine if a line is a duplicate?

The tool performs an exact string match; if two lines contain the identical characters in the identical order, the duplicate is removed.

Can I use this for large datasets or lists?

Yes, because the processing happens locally in your browser, it can handle very large lists without the need for data uploading.