Remove Duplicate Lines
Delete repeated lines from lists, logs and data instantly. Free, private, no sign-up — runs in your browser.
Remove Duplicate Lines
Paste a list and remove every duplicate line in one click. Options for case-insensitive matching, trimming whitespace and removing empty lines.
About this Duplicate Line Remover
Perfect for cleaning email lists, keyword lists, log extracts or CSV columns. The first occurrence of each line is kept and the original order is preserved. Enable "Ignore case" to treat Apple and apple as the same entry.
Frequently asked questions
Is the original order kept?
How large a list can it handle?
Can I keep empty lines?
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