Guide
Duplicate Line Remover
Use this duplicate line remover when pasted lists, notes, labels, logs, or spreadsheet snippets need repeated items removed while keeping the first occurrence.
For
Operators, spreadsheet users, developers, support teams, writers, and students cleaning repeated text entries.
Problem
Pasted lists often contain repeated lines that are slow to find and remove manually.
Output
A copyable list of unique lines with optional duplicate removal counts.
Use when
List cleanupRemove repeated names, labels, topics, or ideas from a pasted list.
Spreadsheet snippetsDeduplicate copied cells before pasting results back into a sheet.
Notes and logsClean repeated lines from rough notes, logs, or support snippets.
What to include
Paste one item per lineLine breaks work best, though commas and semicolons are also supported.
Choose matching modeIgnore case catches Apple and apple as duplicates, while case-sensitive keeps them separate.
Use counts for reviewChoose with count when you need to see how many duplicates were removed.
Steps
01Enter repeated linesPaste the list, labels, notes, or log snippet.
02Select matchingChoose ignore case or case-sensitive duplicate matching.
03Copy unique linesUse the deduplicated output in your document, spreadsheet, or workflow.
Try this
Remove duplicate lines apple, banana, apple.
Useful for quick list cleanup.
Remove duplicate lines and ignore case.
Good for messy pasted text.
Deduplicate these labels and include duplicate count.
Works for review logs.
Good output
- The first occurrence of each unique line is kept.
- The selected case matching mode fits the data.
- The final list is reviewed before replacing source data.
Avoid
Using the wrong case modeChoose case-sensitive only when Apple and apple should remain separate.
Expecting fuzzy matchingThis tool removes exact duplicates, not near-duplicates or spelling variants.
Limits
This tool removes exact duplicate text items only. It does not perform fuzzy matching, merge records, or validate source data.
Review the result before replacing original data, especially when casing or whitespace has meaning.
FAQ
Does it keep the first occurrence?
Yes. The first detected version of each unique line is preserved.
Can it ignore case?
Yes. Choose ignore case when uppercase and lowercase variants should match.
Does it remove near-duplicates?
No. It removes exact duplicates based on the selected case mode.