ClearPaste · Text Tools
Remove Duplicate Lines
Last updated: August 28, 2026
Paste a list, get it deduplicated. First occurrence wins, order is preserved.
How it works
Each line is compared exactly — case and whitespace included. The first time a line appears it stays; every later copy is dropped. Blank lines are treated like any other line.
Use cases
Email lists merged from two sources. Keyword lists before pasting into a campaign. Log files where the same line repeats. Cleaning up copied bullet points that double up.
Related tools
Word & Character Counter Case Converter Remove Empty Lines
Frequently asked questions
Is it case-sensitive?
Yes — "Apple" and "apple" are different lines. Normalize case first with the case converter if you need a merge.
Does it change the order?
No. Remaining lines keep their original order.
Can it handle large lists?
Yes — tens of thousands of lines run instantly, all in your browser.