⚙️ deduplication rules
📋 sort output
source text 0 lines
cleaned result 0 lines

📄 When duplicate text hides

Invisible spaces, mixed case, or blank lines can prevent proper duplicate removal. Trimming whitespace and adjusting case sensitivity helps catch repeated lines your eye might miss.

  • Trim — turns "apple " into "apple"
  • Case-insensitive — merges "Error" and "error"

🗂️ Removing duplicates vs sorting

Keeping the first occurrence preserves the original order of your text — ideal for logs or structured lists. Sorting helps organize cleaned text alphabetically when order doesn’t matter.

Tip: remove duplicate lines first, then sort A→Z for a clean, structured result.

🔒 Private duplicate removal

Your text is processed locally in your browser. No uploads, no servers, no tracking. Perfect for cleaning sensitive text like emails, datasets, or internal content.