Remove Duplicate Lines Online
ATBot's Remove Duplicate Lines tool helps you clean text lists, datasets, copied content, keywords and other line-based text. It automatically detects repeated lines and keeps only one copy of each unique line.
How to Remove Duplicate Lines
- Paste your text into the input box.
- Choose the cleaning options you need.
- Click Remove Duplicates.
- Copy the cleaned result or download it as a TXT file.
Useful Cleaning Options
You can remove empty lines, trim unnecessary spaces, ignore uppercase/lowercase differences, and optionally sort the cleaned list alphabetically.
Frequently Asked Questions
It removes repeated lines from your text while keeping one occurrence of each unique line.
Yes. The processing happens directly in your browser, making it convenient for normal text lists and datasets.
When enabled, lines such as "Apple" and "apple" are treated as duplicates.
Yes. Use the Download TXT button to save the result as a plain text file.