How to use the Remove Duplicate Lines
- Type or paste your text into the box.
- Choose whether to ignore upper/lower case and extra spaces.
- Copy the result or download it as a text file.
What does this tool do?
Useful for email lists, keyword lists, product codes and log files. The first occurrence of each line is kept and the order stays the same, so nothing gets shuffled.
Why use it?
- Clean email and contact lists.
- Deduplicate keywords or URLs.
- See exactly how many duplicates were removed.
Example
apple, banana, Apple, cherry, banana (one per line) becomes apple, banana, cherry with “ignore case” on — 2 duplicates removed.
Privacy
Everything you type is processed in your browser. Nothing you enter is sent to our servers or stored by us. There's no account to create and nothing to install.
Last reviewed by the M2Toolkit team.