Remove Duplicate Lines
Clean lists fast: remove duplicate lines, preserve order, and export unique text.
Runs in your browser — nothing is uploaded
Lines
Unique lines
Your result will appear here.
About this tool
Remove Duplicate Lines (Duplicate Text Remover)
Paste your text and get unique lines instantly. This tool removes duplicate lines while preserving readable content and order, so you can clean lists, CSV-ish blocks, or logs in seconds.
Features
- Remove exact duplicate lines (optionally case sensitive)
- Choose to keep the first or the last occurrence
- Preserve original order or output sorted unique lines
- One-click copy and clear
- Bulk-friendly, works with large text
Examples
Inputapple
banana
apple
orange
Banana
Output (case insensitive)apple
banana
orange
Output (case sensitive)apple
banana
orange
Banana
FAQ
What duplicates are removed?
Exact line matches. If you need per-word de-duplication, try removing duplicate words first.
Will my line order change?
No, unless you enable sorting. By default, the first occurrence is kept and order is preserved.
How big can the input be?
Large blocks are fine; processing happens in the browser for speed and privacy.
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