What this list cleaner does
Paste one item per line and remove duplicate lines while keeping the first version. You can trim spaces, remove blank lines, turn on case-sensitive matching, and sort lines online before copying the result.
Duplicate line remover
Remove duplicate lines, trim blank rows, sort lists, and copy a clean output. This list cleaner works locally for quick spreadsheet, marketing, event, and everyday text cleanup.
Duplicate line remover controls
Use this list cleaner for pasted emails, SKUs, keywords, guest lists, tasks, URLs, or spreadsheet rows.
- Kept
- 3
- Duplicates
- 2
- Blanks
- 1
2 duplicates removed · 1 blank lines removed
Sample list loaded.
Common use cases
Use it for email lists, invite lists, SKUs, keywords, coupon codes, URLs, restaurant menu items, event checklists, and any pasted list that needs quick deduplication.
Privacy and local processing
The duplicate line remover runs in your browser. SimpleTaskKit does not upload, save, or inspect the lines you paste.
Inputs and outputs
Input is plain text with one item per line. Output is a cleaned text list, plus counts for kept lines, duplicate rows removed, and blank lines removed.
Limits and edge cases
Case-insensitive matching treats Apple and apple as duplicates. Turn on case-sensitive mode when capitalization carries meaning, such as product codes or identifiers.
Related cleanup tools
Use the character and word counter for text length, the URL slug generator for permalink cleanup, and the Base64 and URL encoder when copied lines need safe URL encoding.
Working with developer payloads?
Use PayloadHarbor for JSON, XML, and API utilities.
SimpleTaskKit stays focused on everyday productivity tools. If your cleanup work involves JSON, XML, API signatures, tokens, or payload debugging, PayloadHarbor is the developer-focused workbench.
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