Text cleanup
Duplicate line remover
Clean lists, logs, and exports by collapsing repeated lines without sorting.
Processed in your browser — nothing is uploaded
Title style
Snake style
Output
Direction
Whitespace
Locale
Compare
View
Replace with
Direction
Sort
Numbering
Unit
Format
Version
Kind
Direction
Direction
Direction
Category
Difficulty
Content
Error correction
Type
Changed
Pick a font style
Converted
Ready for Antakshari?
Ready?
Now sing a song containing or starting with this word!
Words generated: 0
Strength
Walks lines top to bottom and keeps the first time each exact line appears, including blank lines as their own key.
Last reviewed 2026-09-10.
FAQ
Questions, answered
Is comparison exact?
Yes. Trailing spaces make lines different. Trim first if you need that.
Does it sort?
No. Order of first appearance is kept. Use the sort tool if you want alphabetical.
Does my text leave the browser?
No. The duplicate line remover runs in JavaScript on this page. Your paste is not uploaded.
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