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Remove Duplicate Lines
Remove duplicate lines from text online. Free tool to deduplicate text and find unique lines instantly.
How to Remove Duplicate Lines
Paste your text and click "Remove Duplicates" to keep only unique lines. Use "Show Only Duplicates" to see which lines appear more than once.
Options
- Case insensitive — treats "Hello" and "hello" as the same line
- Trim whitespace — ignores leading and trailing spaces when comparing
Common Uses
Clean up lists, remove duplicate entries from CSV data, deduplicate email addresses, clean log files, or find repeated lines in any text document.