Duplicate Line Remover
Deduplicate lists and logs, keeping the first occurrence.
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About the Duplicate Line Remover
Mailing lists merged from two sources, server logs with repeating entries, name rosters compiled by committee — duplicates creep in everywhere. Paste your lines here and get back a clean list where every entry appears exactly once, in its original order.
A live badge tells you precisely how many duplicates were removed, so you can sanity-check the cleanup at a glance. Toggle case sensitivity off when "Apple" and "apple" should count as the same entry.
How to use it
- 1Paste your list — one entry per line.
- 2Choose whether matching should be case sensitive.
- 3Read the removed-duplicates count in the badge, then copy the unique list.
Frequently asked questions
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