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Remove Duplicate Lines
Remove duplicate lines from your text online instantly with our Duplicate Line Remover. Clean up lists, code, or documents and keep only unique lines—fast, private, and browser-based. No uploads, no risk, and works on any device.
About This Tool
Learn what makes this tool special
Clean up messy lists by removing repeated lines while preserving the first occurrence and original order. Optionally trim whitespace, treat lines case‑sensitively, and export a deduplicated result that’s ready for spreadsheets, code, or content. Everything runs locally in your browser for speed and privacy.
Key Features
What makes this tool special
- Remove duplicate lines from text instantly
- Keeps only unique lines, preserves order
- Handles large lists, code, or documents
- No uploads—100% browser-based
- Works on any device
Quick Guide
Master this tool in seconds
- 1Paste or type text containing duplicate lines.
- 2Click 'Remove Duplicates' to clean the text.
- 3Only unique lines will remain in the output.
- 4Copy the cleaned text for your use.
Common Questions
Everything you need to know
Q.Does it preserve line order?
A.
The first occurrence of each line is kept, and order is generally preserved.
Q.Is whitespace considered?
A.
Yes, lines with different whitespace are treated as different lines.
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