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Duplicate Line Remover and Dedupe List Tool

Use this duplicate line remover when pasted lists, notes, labels, logs, or spreadsheet snippets need repeated lines 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, cleaned numbering, and first occurrences preserved.

Use when

List cleanupRemove repeated names, labels, topics, or ideas from a pasted list.
Dedupe listsKeep unique lines from copied options, tags, keywords, product labels, or short text rows.
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 exact itemsLine breaks work best, though commas, semicolons, and simple numbering are also supported for short lists.
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

List
Remove duplicate lines apple, banana, apple.

Useful for quick list cleanup.

Numbered
Dedupe 1. apple 2. banana 3. apple with count.

Useful for copied numbered lists.

Case
Remove duplicate lines and ignore case.

Good for messy pasted text.

Count
Deduplicate these labels and include duplicate count.

Works for review logs.

Good output

  • The first occurrence of each unique line is kept.
  • Pasted bullets or numbering are cleaned before duplicate matching.
  • The output contains only unique lines under the selected matching rule.
  • 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 dedupe a comma-separated list?

Yes. Commas, semicolons, line breaks, and simple numbering are supported for short pasted lists.

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.

Does it save my pasted lines?

No. It returns a copyable deduplicated result and does not add storage or tracking for the pasted list.

AlphabetizerAlphabetize exact pasted list items, numbered items, or labels A-Z or Z-A with line, numbered, and comma output.Text CleanerClean pasted text by removing extra spaces, line breaks, tabs, repeated punctuation, trimming lines, and copy-paste formatting noise without rewriting it.List RandomizerShuffle pasted list items, cleaned numbered items, or random subsets with duplicate handling, line, numbered, and comma output controls.