Text UtilitiesText CleanersFree Tool
Remove Duplicate Lines
Remove repeated lines from a list, keeping only the first occurrence of each unique line, in original order.
How to Use Remove Duplicate Lines
- 1Paste your list, one item per line
- 2Click Convert
- 3Copy the deduplicated list
Frequently Asked Questions
By exact text match — two lines are considered duplicates only if they're character-for-character identical, including capitalization and trailing spaces.
The first occurrence of each unique line is kept, and later duplicates are removed; the surviving lines stay in their original relative order.
Yes — 'Apple' and 'apple' are treated as different lines and both kept, since the comparison is an exact match.
No — deduplication happens entirely in your browser.
Related Tools
Remove Line Breaks
Replace every line break in your text with a single space, turning multi-line text into one continuous line.
Remove Extra Spaces
Collapse any run of whitespace (multiple spaces, tabs, line breaks) down to a single space, and trim the ends.
Remove Empty Lines
Delete every blank or whitespace-only line from your text, keeping only lines with actual content.
Remove Special Characters
Strip everything except letters, numbers, and whitespace from your text — an aggressive cleanup that also removes punctuation.