Remove Duplicate Lines from Lists

How to Use:

1. Paste or type your list in the input area (one item per line)
2. Choose case sensitive if you want "Apple" and "apple" to be treated as different
3. Click "Remove Duplicates" to process your list
4. See the result with duplicates removed and count of duplicates found
5. Click "Copy" to copy to clipboard or "Download" to save as a file

Options Explained:

• Case sensitive: When enabled, "Apple" and "apple" are treated as different lines. When disabled, they are considered duplicates.
• Remove Duplicates: Removes all duplicate lines, keeping only the first occurrence of each unique line.

Keyboard Shortcuts:

• Ctrl + Enter (or Cmd + Enter): Remove duplicates
• Ctrl + C: Copy when output is focused

Related Tools:

• Alphabetize List
• Clean Empty Lines
• Sort Lines

Why Use the Remove Duplicate Lines Tool?

• Works instantly in your browser - no downloads needed
• Completely free - no signup or registration required
• No data collection or tracking - your data stays private
• Finds and removes exact duplicate lines
• Preserves order of first occurrence
• Case sensitive or insensitive options