Duplicate Line Remover
Remove duplicate lines from any list or block of text, with options for case sensitivity and whitespace trimming.
Result
Your de-duplicated list will appear here.
Free to use, no sign-up, no limit on how many times you run it.More text tools
Overview
Lists pulled from spreadsheets, emails, or exports often end up with repeated entries. This tool strips duplicate lines down to a clean, unique list in one pass.
- Instant results with no size limit on pasted text
- Optional case-sensitive or case-insensitive matching
- Optional whitespace trimming so invisible spacing doesn't cause false differences
- Shows exactly how many duplicate lines were removed
How to use it
- 1Paste your list into the text box
- 2Adjust the case-sensitivity and trimming options if needed
- 3Copy the cleaned-up result
Tips
- — If two lines look identical but aren't being merged, trailing whitespace is a common cause — leave 'Trim whitespace' turned on
Frequently asked questions
Does this tool keep the first or last occurrence of a duplicate?
It keeps the first occurrence of each line and removes any that repeat later in the list.
Can I ignore differences in capitalization?
Yes — turn off 'Case-sensitive' and lines that only differ by capitalization will be treated as duplicates.