Remove Duplicate Lines from Spreadsheet Data
When you copy columns from spreadsheets, duplicates are common. Paste your spreadsheet data here to quickly get a unique list without opening a formula editor.
How to do this
Select and copy your spreadsheet column
Paste into the input
Run the deduplication tool
Paste the clean data back into your spreadsheet
Paste text below and run the tool. Everything runs locally in your browser. No data is stored.
Remove Duplicate Lines
Paste text with duplicate lines and instantly get a deduplicated version. Useful for cleaning lists, log files, CSV data, and any text where repetition needs to be eliminated.
Example
Input
apple banana apple cherry banana
Output
apple banana cherry
How Remove Duplicate Lines Works
Paste text with duplicate lines and instantly get a deduplicated version. Useful for cleaning lists, log files, CSV data, and any text where repetition needs to be eliminated.
This tool runs entirely in your browser — no data is sent to any server. Paste your text, click Run, and get your result instantly. You can also chain this tool with others using the pipeline feature: run Remove Duplicate Lines, then continue with a related tool to build a multi-step text workflow.
Related Tools
TextRefinery is a free, open-source text processing toolkit. Learn more about regular expressions and text processing on the web.
Example: Remove Duplicate Lines from Spreadsheet Data
Input
Product A Product B Product C Product A Product D Product B
Output
Product A Product B Product C Product D
Related Use Cases
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Clean up duplicate lines that appear when copying text from PDF documents.
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Remove Duplicate Lines from Email Lists
Deduplicate email lists for newsletters, outreach campaigns, and contact management.