Remove Duplicate Lines Online — Clean Lists Free
Paste a list and remove every repeated line instantly — the first occurrence stays, in its original order, and the rest are deleted. Ideal for cleaning keyword lists, emails and tags.
Remove Duplicate Lines
Paste a list and remove repeated lines instantly — keep the first occurrence, in order.
How to use it
- Paste your lines, one per line.
- Tick “Ignore case” if “Apple” and “apple” should count as duplicates.
- Tap “Remove duplicates” and copy the clean list.
Frequently asked questions
Which duplicate is kept?
The first occurrence. Later repeats are removed, and the original order of the remaining lines is preserved.
Does it handle blank lines?
Tick “Remove empty lines” and blank lines are dropped too.
Is my list uploaded?
No — the whole operation runs in your browser; your list never leaves your device.
What can I clean with this?
Keyword lists, email lists, hashtag lists, URLs, names — any list where each item sits on its own line.
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This tool never downloads other people's Facebook, TikTok or Instagram videos. It works only on files and text you provide. See our official download-your-own-video guide.