What is the difference between distinct and absolutely unique list items?

Distinct output keeps one entry for each value. Absolutely unique output removes every value that occurs more than once, rather than keeping one copy.

Why do my unique list items become lowercase?

Case-insensitive matching uses lowercase keys for the result. Enable case-sensitive matching when the original case distinctions matter.

Do spaces affect duplicate detection?

They can. Enable trimming to remove surrounding spaces before comparison, and choose whether empty items should remain in the input set.

Unique Line Filter | Tool Factory

Tool workspace

Needs input

Your input stays in this browser.

Input

Add your source and choose the required options.

Input list

List options

Split input with

Split separator

Output separator

Discard blank entries

Trim items

Match letter case

Keep items that occur once

Results update automatically.

Your result appears here

Complete the required input to continue.

Direct answer

What Unique Line Filter does

Unique Line Filter helps you remove repeated lines and keep unique text items. You can add text or data, choose the needed options, and review the text result.

Output

What you receive

The tool returns a text result. Check the result before you use it in another system.

Use this tool

How to use Unique Line Filter

Add the text or data that you want to process.
Use the available controls to choose the required options.
Review the text result. Copy or download it when the tool provides that action.

Processing

Browser processing

This tool processes its input in your browser. Your files and text stay on your device.

Limits

Check before you use the result

The result depends on the quality and format of the supplied text or data.
Closing this page clears the active task from the interface.

Topics

Explore connected categories

Text & Lists