Have a list with repeated entries you need to clean up? This free tool removes duplicate lines from your text, keeping only unique entries while preserving the original order.
The first occurrence of each line is kept in its original position. Only subsequent duplicates are removed.
Choose whether "Hello" and "hello" should be treated as duplicates or as different lines.
Optionally trim leading and trailing whitespace before comparing lines, so lines differing only by spaces are treated as duplicates.
Efficiently processes lists with thousands of lines without performance issues.
Duplicates are removed in real time as you paste or modify your text.
All processing happens locally in your browser.
Enable Auto-fill to carry your output to the next tool. Navigate back and forward with full state restoration — input, output, and all settings are preserved.
Paste a list of email addresses or names and instantly remove duplicates to ensure each entry appears only once.
Application logs often contain repeated error messages. Remove duplicate lines to see only unique entries and identify distinct issues.
Sort lines alphabetically, numerically, or randomly.
Delete lines by pattern, regex, or blank line rules.
Trim and collapse extra spaces and tabs.
Pull out email addresses and URLs from text.
Search and replace text with regex support.