Duplicate Line Remover

Remove duplicate lines from text with customizable options

Processing Options

Input Text

Cleaned Text

Smart Detection

Intelligently identifies and removes duplicate lines

Flexible Options

Case sensitivity, whitespace, and order preferences

Statistics

Detailed metrics on duplicates and reductions

Export Ready

Copy to clipboard or download cleaned text

Processing Options Explained

Case Sensitivity

Case Sensitive (ON):
apple
Apple
APPLE
→ All three lines are kept (different cases)
Case Sensitive (OFF):
apple
→ Only first occurrence kept

Order Preservation

Preserve Order (ON):
zebra
apple
banana
→ Original order maintained
Preserve Order (OFF):
apple
banana
zebra
→ Alphabetically sorted

About Duplicate Line Removal

Duplicate line removal is essential for data cleaning, list management, and text processing. This tool helps you clean up datasets, remove redundant entries, and organize text content efficiently.

Common Use Cases:

  • • Email list cleaning
  • • Data deduplication
  • • Log file processing
  • • List management

Features:

  • • Multiple processing options
  • • Real-time statistics
  • • Whitespace handling
  • • Order preservation
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