Remove Duplicates or Keep Unique

Remove duplicate lines from your text, keeping only unique lines. Useful for cleaning lists, code, or any text with repeated entries.

Waiting for your input...

Paste or type your text into the input box. Each line will be processed.
Example: apple\napple\nbanana\ncarrot\nbanana\npear
Click Convert to see your text with only unique lines, in the order they first appeared.
Example output: apple\nbanana\ncarrot\npear
All empty lines in your input will be ignored.

What happens to empty lines in my input?

All empty lines are ignored. Only non-empty lines are kept and checked for duplicates.

Is the duplicate check case-sensitive?

Yes, 'Apple' and 'apple' are considered different lines.

Can I keep only lines that are unique (appear once)?

This tool keeps the first occurrence of each line. If you want to keep only lines that appear once, let us know!

Will the tool work with very large texts?

Yes, the tool is designed to handle large multi-line text inputs efficiently.

This tool provides an API for programmatic access.

Endpoint: POST /tools/remove-duplicates/api/

Request Body: { "text": "apple\napple\nbanana\ncarrot\nbanana\npear" }

Response: The response will be the text with duplicates removed, one line per entry. { "result": "apple\nbanana\ncarrot\npear" }