Duplicate Line Remover

Remove duplicate lines from text with detailed statistics and multiple removal modes

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Input Text

Removal Options

Case Insensitive

Treat "Hello" and "hello" as duplicates

Preserve Empty Lines

Keep blank lines in the output

Trim Whitespace

Remove leading/trailing spaces before comparison

Features

• Multiple duplicate removal modes
• Case-sensitive and insensitive options
• Preserve or remove empty lines
• Trim whitespace before comparison
• Keep first or last occurrence

• Detailed statistics and analytics
• Show duplicate groups and counts
• Real-time processing
• One-click copy to clipboard
• Handles large text efficiently

Common Use Cases

Data Cleaning

• Clean email lists
• Remove duplicate URLs
• Process CSV data
• Clean log files

Content Management

• Remove duplicate keywords
• Clean word lists
• Process inventory data
• Deduplicate configurations