Remove Duplicate Lines Online - Find and Remove Duplicates Free

Remove Duplicate Lines Online Free

Free online tool to remove duplicates and duplicate lines from text. Find and remove all duplicate lines, keep only unique ones. Works without registration directly in your browser.

How to Remove Duplicate Lines:

1. Enter text in the input field - each line should be on a new line

2. Choose work mode:

   • Remove all duplicate lines - removes all duplicate lines in the entire text, keeping only the first occurrence of each unique line
   • Remove consecutive duplicate lines - removes only consecutively repeating lines (duplicates that appear one after another)
   • Leave absolutely unique text lines - leaves only lines that occur once in the text (removes all lines that appear more than once)

3. Configure line breaks, tabs and spaces handling:

   • Preserve all line breaks - will keep empty lines in the output
   • Filter all new lines - processes line breaks as regular lines
   • Delete all new lines - removes all line breaks before filtering
   • Trim text lines - removes spaces and tabs at the beginning and end of lines

4. Enable line sorting if needed - will sort unique lines after removing duplicates

5. Result will be displayed automatically in the right field. Copy or download the cleaned text.

Use Cases:

• Remove duplicates from keyword list
• Find and remove duplicate lines in logs
• Clean list from duplicates for database
• Keep only unique values from large text

Processes large text volumes. All operations are performed locally in the browser, data is not sent to the server.