Remove Duplicate Lines from CSV Data
CSV exports from databases, CRMs, and spreadsheets often contain duplicate rows. Paste your CSV data here to quickly remove repeated lines and keep only unique entries.
How to do this
Export your CSV data
Paste the raw text into the input
Run the tool to remove duplicates
Download or copy the cleaned data
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 CSV Data
Input
john@example.com,John,Sales jane@example.com,Jane,Marketing john@example.com,John,Sales bob@example.com,Bob,Engineering
Output
john@example.com,John,Sales jane@example.com,Jane,Marketing bob@example.com,Bob,Engineering
Related Use Cases
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Remove Duplicate Lines from Spreadsheet Data
Clean duplicate entries from Excel or Google Sheets data pasted as text.