Clean up a list in one click
Paste any list — emails, keywords, URLs, names, log lines — and this tool strips out the repeats, keeping only the unique entries. It's the fast fix for a messy export or a copy-pasted list that's accumulated duplicates, with a live count of exactly how many lines were removed.
The options
- Ignore case — treats "Apple" and "apple" as the same line.
- Trim spaces — ignores leading and trailing whitespace when comparing, so " apple" and "apple" match.
- Sort A–Z — returns the unique lines in alphabetical order instead of original order.
- Drop blank lines — removes empty lines from the result entirely.
How duplicates are chosen
By default the tool keeps the first appearance of each line and removes every later copy, so the original ordering is preserved. Turn on sorting if you'd rather have a tidy alphabetical list. Comparisons respect your case and trim settings, so you control exactly what counts as a duplicate.
Frequently asked questions
How does removing duplicate lines work?
The tool keeps the first time each line appears and drops any later exact copies, preserving the original order unless you choose to sort. Options let you ignore case and trim surrounding spaces when deciding what counts as a duplicate.
Does it keep the original order of lines?
Yes by default — the first occurrence of each unique line stays in place. If you turn on the sort option, the unique lines are returned in alphabetical order instead.
Is my text uploaded when I deduplicate it?
No. The processing happens entirely in your browser, so even long or sensitive lists never leave your device.